Question

The _________ step in balancing a chemical equation is to take inventory or count atoms on the reactant and the product side.
A first
B second
C last
The number 3 next to hydrogen in NH3 is the ____.
A coefficient
B numerator
C subscript
How many atoms of hydrogen in the product side of the balanced equation? Fe + H2O ---> FeO + H2
A 2
B 3
C 6
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Answer 1

1) A — first

2) C — subscript

3) A — 2 (the equation is already balanced: H2O → H2 gives 2 hydrogen atoms on the product side)