Question

hydrogen peroxide can be used to disinfect and clean surfaces around the home. it breaks down over time into oxygen gas and water.
consider the following reaction:
some amount of hydrogen peroxide (h₂o₂) reacts to produce 1 molecule of oxygen (o₂) and 2 molecules of water (h₂o).
use the number of atoms in the reaction to answer the question below.
chemical element number of atoms in the reaction
h 4
o 4
during this reaction, how many molecules of hydrogen peroxide (h₂o₂) react?

Explanation:

Step1: Write the balanced chemical equation

The reaction is \(2H_2O_2
ightarrow O_2 + 2H_2O\).

Step2: Analyze the stoichiometry

From the balanced equation, 2 molecules of hydrogen - peroxide (\(H_2O_2\)) react to produce 1 molecule of oxygen (\(O_2\)) and 2 molecules of water (\(H_2O\)).

Answer:

2