Atoms Rearranged in Reactions
Middle School Science · Flashcards · Application
MIDDLE SCHOOL SCIENCE · FLASHCARDS
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QUESTION
Which change balances
F
e
+
O
2
→
F
e
2
O
3
Fe + O_2 \rightarrow Fe_2O_3
F
e
+
O
2
→
F
e
2
O
3
: add coefficient
2
2
2
before
F
e
2
O
3
Fe_2O_3
F
e
2
O
3
or before
O
2
O_2
O
2
?
QUESTION
Identify whether this equation is balanced:
2
H
2
+
O
2
→
2
H
2
O
2H_2 + O_2 \rightarrow 2H_2O
2
H
2
+
O
2
→
2
H
2
O
.
QUESTION
Identify whether the equation
2
H
2
+
O
2
→
2
H
2
O
2H_2 + O_2 \rightarrow 2H_2O
2
H
2
+
O
2
→
2
H
2
O
is balanced.
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ANSWER
Balanced. 4 H atoms and 2 O atoms on each side confirms balance.
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