Question

use the chemical equation to answer the question.
2o₂ + ch₄ → ?h₂o + co₂
how many molecules of water are produced in the reaction?
(1 point)
○ two
○ one
○ eight
○ four

Explanation:

Step1: Analyze Hydrogen Atoms

In \( \text{CH}_4 \), there are 4 hydrogen atoms. Each \( \text{H}_2\text{O} \) has 2 hydrogen atoms. Let the coefficient of \( \text{H}_2\text{O} \) be \( x \). Then \( 2x = 4 \) (from hydrogen conservation).

Step2: Solve for x

Solving \( 2x = 4 \), we get \( x=\frac{4}{2}=2 \). So the coefficient of \( \text{H}_2\text{O} \) is 2, meaning 2 molecules of water are produced.

Answer:

A. two