Question

balancing chemical equations
cytine willson
h₂ + o₂ → h₂o
multiple - choice question
how many atoms of hydrogen are on the left (reactant) side

Explanation:

Step1: Analyze the reactant side

The reactant side has \(H_2\).

Step2: Calculate the number of hydrogen atoms

In \(H_2\), the sub - script \(2\) indicates the number of hydrogen atoms. So, there are \(2\) hydrogen atoms.

Answer:

2