Model the law of conservation of mass using equations - Middle School Physical Science
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According to the law of conservation of mass, if you start a chemical reaction with 50g of a substance, and 25g of another, you should end the reaction with: (assume this is a closed system)
According to the law of conservation of mass, if you start a chemical reaction with 50g of a substance, and 25g of another, you should end the reaction with: (assume this is a closed system)
Tap to reveal answer
The answer is "75 grams of whatever new substances are created."
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
The answer is "75 grams of whatever new substances are created."
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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In the chemical equation for Carbonic Acid, you begin with the reactants carbon dioxide and water. (CO2 + H2O) How many atoms of Oxygen would you expect to find in the symbol for carbonic acid?
In the chemical equation for Carbonic Acid, you begin with the reactants carbon dioxide and water. (CO2 + H2O) How many atoms of Oxygen would you expect to find in the symbol for carbonic acid?
Tap to reveal answer
The answer is "3 atoms of Oxygen."
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
The answer is "3 atoms of Oxygen."
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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The image above shows the reactants in a chemical equation. How many Oxygen atoms would you expect on the other side of this equation?
The image above shows the reactants in a chemical equation. How many Oxygen atoms would you expect on the other side of this equation?
Tap to reveal answer
There will be 10 Oxygen atoms in the products because there are 5 molecules of Oxygen, each with 2 bonded atoms.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
There will be 10 Oxygen atoms in the products because there are 5 molecules of Oxygen, each with 2 bonded atoms.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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The equation above shows a complete chemical reaction. How does this equation violate the law of conservation of mass?
The equation above shows a complete chemical reaction. How does this equation violate the law of conservation of mass?
Tap to reveal answer
This equation does not violate the law of conservation of mass because there are equal numbers of atoms of each kind on each side.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
This equation does not violate the law of conservation of mass because there are equal numbers of atoms of each kind on each side.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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A student puts 26.4 grams of baking soda in a balloon and ties it over the top of the bottle containing 50 grams of vinegar. After 40 minutes passes, there is only 60 grams of liquid and baking soda at the bottom of the bottle but the balloon is blown up. What is the best explanation for this?
A student puts 26.4 grams of baking soda in a balloon and ties it over the top of the bottle containing 50 grams of vinegar. After 40 minutes passes, there is only 60 grams of liquid and baking soda at the bottom of the bottle but the balloon is blown up. What is the best explanation for this?
Tap to reveal answer
The answer is "a chemical reaction occurred and some of the atoms were rearranged to form new substances which filled the balloon with gas."
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
The answer is "a chemical reaction occurred and some of the atoms were rearranged to form new substances which filled the balloon with gas."
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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You are boiling water on a stove. The water evaporates into the air. Is this an example of a closed or an open system?
You are boiling water on a stove. The water evaporates into the air. Is this an example of a closed or an open system?
Tap to reveal answer
This is an example of an open system because the water inside the pot is being introduced to the environment.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
This is an example of an open system because the water inside the pot is being introduced to the environment.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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Is the chemical equation above an example of a closed or open system?
Is the chemical equation above an example of a closed or open system?
Tap to reveal answer
The answer is "a closed system because mass is conserved"
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
The answer is "a closed system because mass is conserved"
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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In the following equation, what is the missing product?
Zn + 2HCl --> ZnCl2 +
In the following equation, what is the missing product?
Zn + 2HCl --> ZnCl2 +
Tap to reveal answer
The answer is H2 because there are 2 Hydrogen atoms from the reactant side that are unaccounted for in the products.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
The answer is H2 because there are 2 Hydrogen atoms from the reactant side that are unaccounted for in the products.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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What reactant is missing from the beginning of the equation below?
+ 24F2 --> 8SF6
What reactant is missing from the beginning of the equation below?
+ 24F2 --> 8SF6
Tap to reveal answer
The answer is S8.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
The answer is S8.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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What coefficient is needed in the blank before "C2H6" to balance the chemical equation below?
C2H6 + 7O2 ---> 4CO2 + 6H2O
What coefficient is needed in the blank before "C2H6" to balance the chemical equation below?
C2H6 + 7O2 ---> 4CO2 + 6H2O
Tap to reveal answer
The answer is "2."
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
The answer is "2."
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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According to the law of conservation of mass, if you start a chemical reaction with 50g of a substance, and 25g of another, you should end the reaction with: (assume this is a closed system)
According to the law of conservation of mass, if you start a chemical reaction with 50g of a substance, and 25g of another, you should end the reaction with: (assume this is a closed system)
Tap to reveal answer
The answer is "75 grams of whatever new substances are created."
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
The answer is "75 grams of whatever new substances are created."
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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In the chemical equation for Carbonic Acid, you begin with the reactants carbon dioxide and water. (CO2 + H2O) How many atoms of Oxygen would you expect to find in the symbol for carbonic acid?
In the chemical equation for Carbonic Acid, you begin with the reactants carbon dioxide and water. (CO2 + H2O) How many atoms of Oxygen would you expect to find in the symbol for carbonic acid?
Tap to reveal answer
The answer is "3 atoms of Oxygen."
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
The answer is "3 atoms of Oxygen."
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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The image above shows the reactants in a chemical equation. How many Oxygen atoms would you expect on the other side of this equation?
The image above shows the reactants in a chemical equation. How many Oxygen atoms would you expect on the other side of this equation?
Tap to reveal answer
There will be 10 Oxygen atoms in the products because there are 5 molecules of Oxygen, each with 2 bonded atoms.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
There will be 10 Oxygen atoms in the products because there are 5 molecules of Oxygen, each with 2 bonded atoms.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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The equation above shows a complete chemical reaction. How does this equation violate the law of conservation of mass?
The equation above shows a complete chemical reaction. How does this equation violate the law of conservation of mass?
Tap to reveal answer
This equation does not violate the law of conservation of mass because there are equal numbers of atoms of each kind on each side.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
This equation does not violate the law of conservation of mass because there are equal numbers of atoms of each kind on each side.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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A student puts 26.4 grams of baking soda in a balloon and ties it over the top of the bottle containing 50 grams of vinegar. After 40 minutes passes, there is only 60 grams of liquid and baking soda at the bottom of the bottle but the balloon is blown up. What is the best explanation for this?
A student puts 26.4 grams of baking soda in a balloon and ties it over the top of the bottle containing 50 grams of vinegar. After 40 minutes passes, there is only 60 grams of liquid and baking soda at the bottom of the bottle but the balloon is blown up. What is the best explanation for this?
Tap to reveal answer
The answer is "a chemical reaction occurred and some of the atoms were rearranged to form new substances which filled the balloon with gas."
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
The answer is "a chemical reaction occurred and some of the atoms were rearranged to form new substances which filled the balloon with gas."
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change.
Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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You are boiling water on a stove. The water evaporates into the air. Is this an example of a closed or an open system?
You are boiling water on a stove. The water evaporates into the air. Is this an example of a closed or an open system?
Tap to reveal answer
This is an example of an open system because the water inside the pot is being introduced to the environment.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
This is an example of an open system because the water inside the pot is being introduced to the environment.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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Is the chemical equation above an example of a closed or open system?
Is the chemical equation above an example of a closed or open system?
Tap to reveal answer
The answer is "a closed system because mass is conserved"
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
The answer is "a closed system because mass is conserved"
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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In the following equation, what is the missing product?
Zn + 2HCl --> ZnCl2 +
In the following equation, what is the missing product?
Zn + 2HCl --> ZnCl2 +
Tap to reveal answer
The answer is H2 because there are 2 Hydrogen atoms from the reactant side that are unaccounted for in the products.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
The answer is H2 because there are 2 Hydrogen atoms from the reactant side that are unaccounted for in the products.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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What reactant is missing from the beginning of the equation below?
+ 24F2 --> 8SF6
What reactant is missing from the beginning of the equation below?
+ 24F2 --> 8SF6
Tap to reveal answer
The answer is S8.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
The answer is S8.
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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What coefficient is needed in the blank before "C2H6" to balance the chemical equation below?
C2H6 + 7O2 ---> 4CO2 + 6H2O
What coefficient is needed in the blank before "C2H6" to balance the chemical equation below?
C2H6 + 7O2 ---> 4CO2 + 6H2O
Tap to reveal answer
The answer is "2."
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
The answer is "2."
The law of conservation of mass states that mass can neither be created nor destroyed in a chemical reaction. Thus, the amount of matter cannot change. Because mass is always conserved in chemical reactions, balanced chemical equations have the same number and type of each atom on both sides of the equation. Products in chemical reactions are the result of the same number of atoms being rearranged into new substances.
The law of conservation of mass only applies in “closed systems” meaning that the mass and energy is not able to escape to the environment. For example, if you are boiling water on the stove and you put a lid on your pot, the water vapor will collect inside the pot. This is a closed system, and the amount of mass will not change, though it will be converted from liquid to gas. If you take the lid off your pot, the evaporated water will escape into your kitchen and the total amount of matter will change. You opened your system!
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