QuestionIdentify the role of the 2 in front of $\mathrm{H}_{2}$ in the reaction: $2 \mathrm{H}_{2}+\mathrm{O}_{2}->2 \mathrm{H}_{2} \mathrm{O}$ .

Studdy Solution

STEP 1

Assumptions1. The given chemical reaction is $\mathrm{H}_{}+\mathrm{}_{}-> \mathrm{H}_{} \mathrm{}$ . We are interested in the role of the number '' in front of the $\mathrm{H}_{}$ .

STEP 2

In a chemical equation, the number written in front of a molecule is called a stoichiometric coefficient.

STEP 3

The stoichiometric coefficient indicates the number of molecules (or moles) involved in the reaction.

STEP 4

In this case, the '2' in front of the $\mathrm{H}_{2}$ means that two molecules of hydrogen are involved in the reaction.So, the2 in front of the $\mathrm{H}_{2}$ in the chemical reaction is a stoichiometric coefficient.

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