Representations of Reactions - AP Chemistry
Card 1 of 30
What is meant by 'reaction stoichiometry'?
What is meant by 'reaction stoichiometry'?
Tap to reveal answer
Proportional relationships in a balanced equation. Molar ratios from coefficients in balanced equations.
Proportional relationships in a balanced equation. Molar ratios from coefficients in balanced equations.
← Didn't Know|Knew It →
Balance the equation: $\text{KClO}_3 \rightarrow \text{KCl} + \text{O}_2$
Balance the equation: $\text{KClO}_3 \rightarrow \text{KCl} + \text{O}_2$
Tap to reveal answer
$2 \text{KClO}_3 \rightarrow 2 \text{KCl} + 3 \text{O}_2$. Balance potassium and chlorine first, then oxygen.
$2 \text{KClO}_3 \rightarrow 2 \text{KCl} + 3 \text{O}_2$. Balance potassium and chlorine first, then oxygen.
← Didn't Know|Knew It →
What type of reaction is $2 \text{H}_2 + \text{O}_2 \rightarrow 2 \text{H}_2\text{O}$?
What type of reaction is $2 \text{H}_2 + \text{O}_2 \rightarrow 2 \text{H}_2\text{O}$?
Tap to reveal answer
Combination reaction. Two elements combine to form a single compound.
Combination reaction. Two elements combine to form a single compound.
← Didn't Know|Knew It →
Identify the products in the combustion of methane: $\text{CH}_4 + 2 \text{O}_2 \rightarrow \text{CO}_2 + 2 \text{H}_2\text{O}$
Identify the products in the combustion of methane: $\text{CH}_4 + 2 \text{O}_2 \rightarrow \text{CO}_2 + 2 \text{H}_2\text{O}$
Tap to reveal answer
$\text{CO}_2$, $2 \text{H}_2\text{O}$. Complete combustion produces carbon dioxide and water.
$\text{CO}_2$, $2 \text{H}_2\text{O}$. Complete combustion produces carbon dioxide and water.
← Didn't Know|Knew It →
What is the product of the neutralization reaction between $\text{H}_2\text{SO}_4$ and $\text{KOH}$?
What is the product of the neutralization reaction between $\text{H}_2\text{SO}_4$ and $\text{KOH}$?
Tap to reveal answer
$\text{K}_2\text{SO}_4$ and $\text{H}_2\text{O}$. Acid neutralization forms salt plus water.
$\text{K}_2\text{SO}_4$ and $\text{H}_2\text{O}$. Acid neutralization forms salt plus water.
← Didn't Know|Knew It →
Which symbol in a chemical equation indicates a gaseous state?
Which symbol in a chemical equation indicates a gaseous state?
Tap to reveal answer
$(g)$. Standard notation for gas phase in chemical equations.
$(g)$. Standard notation for gas phase in chemical equations.
← Didn't Know|Knew It →
What does the Δ symbol above the arrow in a chemical equation indicate?
What does the Δ symbol above the arrow in a chemical equation indicate?
Tap to reveal answer
Heat is applied. Delta indicates thermal energy is required for the reaction.
Heat is applied. Delta indicates thermal energy is required for the reaction.
← Didn't Know|Knew It →
What is the balanced equation for the synthesis of water from $\text{H}_2$ and $\text{O}_2$?
What is the balanced equation for the synthesis of water from $\text{H}_2$ and $\text{O}_2$?
Tap to reveal answer
$2 \text{H}_2 + \text{O}_2 \rightarrow 2 \text{H}_2\text{O}$. Combination of hydrogen and oxygen gases forms water.
$2 \text{H}_2 + \text{O}_2 \rightarrow 2 \text{H}_2\text{O}$. Combination of hydrogen and oxygen gases forms water.
← Didn't Know|Knew It →
State the formula for the combustion reaction of ethanol: $\text{C}_2\text{H}_5\text{OH}$
State the formula for the combustion reaction of ethanol: $\text{C}_2\text{H}_5\text{OH}$
Tap to reveal answer
$\text{C}_2\text{H}_5\text{OH} + 3 \text{O}_2 \rightarrow 2 \text{CO}_2 + 3 \text{H}_2\text{O}$. Complete combustion of alcohol produces $\text{CO}_2$ and $\text{H}_2\text{O}$.
$\text{C}_2\text{H}_5\text{OH} + 3 \text{O}_2 \rightarrow 2 \text{CO}_2 + 3 \text{H}_2\text{O}$. Complete combustion of alcohol produces $\text{CO}_2$ and $\text{H}_2\text{O}$.
← Didn't Know|Knew It →
What is the result of combustion reactions in terms of energy?
What is the result of combustion reactions in terms of energy?
Tap to reveal answer
Exothermic process. Combustion releases energy as heat and light.
Exothermic process. Combustion releases energy as heat and light.
← Didn't Know|Knew It →
What type of reaction is $\text{AB} \rightarrow \text{A} + \text{B}$?
What type of reaction is $\text{AB} \rightarrow \text{A} + \text{B}$?
Tap to reveal answer
Decomposition reaction. One compound breaks down into two or more simpler substances.
Decomposition reaction. One compound breaks down into two or more simpler substances.
← Didn't Know|Knew It →
Balance the equation: $\text{C}_3\text{H}_8 + \text{O}_2 \rightarrow \text{CO}_2 + \text{H}_2\text{O}$
Balance the equation: $\text{C}_3\text{H}_8 + \text{O}_2 \rightarrow \text{CO}_2 + \text{H}_2\text{O}$
Tap to reveal answer
$\text{C}_3\text{H}_8 + 5 \text{O}_2 \rightarrow 3 \text{CO}_2 + 4 \text{H}_2\text{O}$. Balance carbon first (3), then hydrogen (8), finally oxygen (10).
$\text{C}_3\text{H}_8 + 5 \text{O}_2 \rightarrow 3 \text{CO}_2 + 4 \text{H}_2\text{O}$. Balance carbon first (3), then hydrogen (8), finally oxygen (10).
← Didn't Know|Knew It →
Which symbol in a chemical equation indicates a liquid state?
Which symbol in a chemical equation indicates a liquid state?
Tap to reveal answer
$(l)$. Standard notation for liquid phase in chemical equations.
$(l)$. Standard notation for liquid phase in chemical equations.
← Didn't Know|Knew It →
State the formula for the synthesis of ammonia: $\text{N}_2 + \text{H}_2$
State the formula for the synthesis of ammonia: $\text{N}_2 + \text{H}_2$
Tap to reveal answer
$\text{N}_2 + 3 \text{H}_2 \rightarrow 2 \text{NH}_3$. Haber process combines nitrogen and hydrogen gases.
$\text{N}_2 + 3 \text{H}_2 \rightarrow 2 \text{NH}_3$. Haber process combines nitrogen and hydrogen gases.
← Didn't Know|Knew It →
What does a balanced chemical equation represent?
What does a balanced chemical equation represent?
Tap to reveal answer
Equal number of each type of atom on both sides. Atoms are conserved - same number before and after reaction.
Equal number of each type of atom on both sides. Atoms are conserved - same number before and after reaction.
← Didn't Know|Knew It →
Identify the type of reaction: $\text{AgNO}_3 + \text{NaCl} \rightarrow \text{AgCl} + \text{NaNO}_3$
Identify the type of reaction: $\text{AgNO}_3 + \text{NaCl} \rightarrow \text{AgCl} + \text{NaNO}_3$
Tap to reveal answer
Double replacement reaction. Cations and anions exchange between the two compounds.
Double replacement reaction. Cations and anions exchange between the two compounds.
← Didn't Know|Knew It →
What does the term 'stoichiometry' refer to in chemical reactions?
What does the term 'stoichiometry' refer to in chemical reactions?
Tap to reveal answer
Quantitative relationships between reactants and products. Mathematical ratios between substances in balanced equations.
Quantitative relationships between reactants and products. Mathematical ratios between substances in balanced equations.
← Didn't Know|Knew It →
What type of reaction is $\text{AB} + \text{CD} \rightarrow \text{AD} + \text{CB}$?
What type of reaction is $\text{AB} + \text{CD} \rightarrow \text{AD} + \text{CB}$?
Tap to reveal answer
Double replacement reaction. Both compounds exchange their positive and negative ions.
Double replacement reaction. Both compounds exchange their positive and negative ions.
← Didn't Know|Knew It →
Which symbol in a chemical equation indicates a solid state?
Which symbol in a chemical equation indicates a solid state?
Tap to reveal answer
$(s)$. Standard notation for solid phase in chemical equations.
$(s)$. Standard notation for solid phase in chemical equations.
← Didn't Know|Knew It →
What type of reaction is $\text{C}6\text{H}{12}\text{O}_6 + 6 \text{O}_2 \rightarrow 6 \text{CO}_2 + 6 \text{H}_2\text{O}$?
What type of reaction is $\text{C}6\text{H}{12}\text{O}_6 + 6 \text{O}_2 \rightarrow 6 \text{CO}_2 + 6 \text{H}_2\text{O}$?
Tap to reveal answer
Combustion reaction. Glucose burns in oxygen to produce energy.
Combustion reaction. Glucose burns in oxygen to produce energy.
← Didn't Know|Knew It →
What is indicated by a double-headed arrow in a chemical equation?
What is indicated by a double-headed arrow in a chemical equation?
Tap to reveal answer
Reversible reaction. Equilibrium arrows show reaction can proceed in both directions.
Reversible reaction. Equilibrium arrows show reaction can proceed in both directions.
← Didn't Know|Knew It →
What is the product of a complete combustion of hydrocarbons?
What is the product of a complete combustion of hydrocarbons?
Tap to reveal answer
$\text{CO}_2$ and $\text{H}_2\text{O}$. Complete oxidation yields only these two products.
$\text{CO}_2$ and $\text{H}_2\text{O}$. Complete oxidation yields only these two products.
← Didn't Know|Knew It →
What type of reaction is $\text{CaCO}_3 \rightarrow \text{CaO} + \text{CO}_2$?
What type of reaction is $\text{CaCO}_3 \rightarrow \text{CaO} + \text{CO}_2$?
Tap to reveal answer
Decomposition reaction. Calcium carbonate breaks down into two simpler compounds.
Decomposition reaction. Calcium carbonate breaks down into two simpler compounds.
← Didn't Know|Knew It →
What is meant by 'reaction stoichiometry'?
What is meant by 'reaction stoichiometry'?
Tap to reveal answer
Proportional relationships in a balanced equation. Molar ratios from coefficients in balanced equations.
Proportional relationships in a balanced equation. Molar ratios from coefficients in balanced equations.
← Didn't Know|Knew It →
Balance the equation: $\text{KClO}_3 \rightarrow \text{KCl} + \text{O}_2$
Balance the equation: $\text{KClO}_3 \rightarrow \text{KCl} + \text{O}_2$
Tap to reveal answer
$2 \text{KClO}_3 \rightarrow 2 \text{KCl} + 3 \text{O}_2$. Balance potassium and chlorine first, then oxygen.
$2 \text{KClO}_3 \rightarrow 2 \text{KCl} + 3 \text{O}_2$. Balance potassium and chlorine first, then oxygen.
← Didn't Know|Knew It →
Identify the type of reaction: $\text{H}_2 + \text{Cl}_2 \rightarrow 2 \text{HCl}$
Identify the type of reaction: $\text{H}_2 + \text{Cl}_2 \rightarrow 2 \text{HCl}$
Tap to reveal answer
Combination reaction. Two elements combine to form one compound.
Combination reaction. Two elements combine to form one compound.
← Didn't Know|Knew It →
What type of reaction is $2 \text{H}_2 + \text{O}_2 \rightarrow 2 \text{H}_2\text{O}$?
What type of reaction is $2 \text{H}_2 + \text{O}_2 \rightarrow 2 \text{H}_2\text{O}$?
Tap to reveal answer
Combination reaction. Two elements combine to form a single compound.
Combination reaction. Two elements combine to form a single compound.
← Didn't Know|Knew It →
Identify the state of matter for $H_2O (l)$ in a chemical equation.
Identify the state of matter for $H_2O (l)$ in a chemical equation.
Tap to reveal answer
Liquid. The $(l)$ symbol specifically denotes liquid state.
Liquid. The $(l)$ symbol specifically denotes liquid state.
← Didn't Know|Knew It →
Which type of reaction involves the exchange of ions between two compounds?
Which type of reaction involves the exchange of ions between two compounds?
Tap to reveal answer
Double replacement reaction. Positive and negative ions switch partners between compounds.
Double replacement reaction. Positive and negative ions switch partners between compounds.
← Didn't Know|Knew It →
Balance the equation: $\text{Fe} + \text{O}_2 \rightarrow \text{Fe}_2\text{O}_3$
Balance the equation: $\text{Fe} + \text{O}_2 \rightarrow \text{Fe}_2\text{O}_3$
Tap to reveal answer
$4 \text{Fe} + 3 \text{O}_2 \rightarrow 2 \text{Fe}_2\text{O}_3$. Balance iron atoms first, then oxygen atoms last.
$4 \text{Fe} + 3 \text{O}_2 \rightarrow 2 \text{Fe}_2\text{O}_3$. Balance iron atoms first, then oxygen atoms last.
← Didn't Know|Knew It →