Question

in the chemical reaction shown below, how do you classify hydrogen and oxygen? 2h₂ + o₂ → 2h₂o products reactants physical changes chemical properties

Explanation:

In a chemical reaction equation, substances on the left - hand side that undergo change are reactants. Here, hydrogen ($H_2$) and oxygen ($O_2$) are on the left - hand side of the equation $2H_2 + O_2
ightarrow2H_2O$.

Answer:

B. reactants