determine the reactants of the following reaction *\ncombustion chemical reaction\nch4\no2\nco2\nh2o

Explanation:

Step1: Recall reactant definition

Reactants are substances on left - hand side of chemical equation.

Step2: Identify reactants in given equation

In $CH_{4}+2O_{2}\rightarrow CO_{2}+2H_{2}O$, $CH_{4}$ and $O_{2}$ are on left - hand side.

Answer:

CH4, O2