Question

how many atoms of hydrogen in the product side of the balanced equation? fe + h₂o ---> feo + h₂ a 2 b 3

Explanation:

Step1: Check equation balance

Count atoms on each side:
Reactants: Fe = 1, H = 2, O = 1
Products: Fe = 1, O = 1, H = 2
The equation $\text{Fe} + \text{H}_2\text{O}
ightarrow \text{FeO} + \text{H}_2$ is already balanced.

Step2: Count H atoms on product side

The product $\text{H}_2$ has 2 hydrogen atoms.

Answer:

A. 2