Question

In the reaction 2H2 + O2 → __H2O , what coefficient should be placed in front of H2O to balance the reaction?

Answer 1

Answer:

2

Explanation:

We have 4 H total and 2 O total on the left, and on the right we have 2 H and 1 O total without the coefficient, so when we add the 2, H becomes 4 and O becomes 2

Answer 2

Answer:

2

Explanation:

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