In the reaction 2H2 + __________ O2 → 2H2O, what coefficient should be placed in front of O2 to balance the reaction? 1 2 no coefficient is needed

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

1
2
no coefficient is needed

1 Answer

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