Question

ch₄ + 2o₂ → co₂ + 2h₂o, what is the coefficient in 2h₂o

Explanation:

Step1: Recall coefficient definition

In a chemical formula or equation, the coefficient is the number placed before a chemical species (like a molecule or formula unit) to indicate the number of moles (or molecules) of that species.

Step2: Identify the coefficient in \(2H_2O\)

Looking at the formula \(2H_2O\), the number before \(H_2O\) (the chemical species) is 2. So this number is the coefficient.

Answer:

The coefficient in \(2H_2O\) is 2.