Asked by An

Based on the following chemical equation how many molecules of Hydrogen (H) are present in the reactants side?

2H2 + O2 ----> 2H2O

a. 1
b. 2
c. 3
d. 4
Answered by DrBob222
Look at the equation. It tells you. Two mols hydrogen react with 1 mol oxygen to form 2 mol H2O.
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