When hydrogen peroxide bubbles, it is undergoing a chemical change. Which statement best describes what is happening?

Question

The atoms in hydrogen peroxide are breaking apart and forming new types of molecules.
The atoms in hydrogen peroxide are breaking apart and recombining into the original molecules.
The molecules of hydrogen peroxide remain intact as new types of molecules form and move out of the liquid.
The molecules of hydrogen peroxide remain intact but move more quickly to allow evaporation.

Answer 1

The statement that best describes what is happening when hydrogen peroxide bubbles is:

The atoms in hydrogen peroxide are breaking apart and forming new types of molecules.

When hydrogen peroxide (H₂O₂) decomposes, it breaks down into water (H₂O) and oxygen gas (O₂), resulting in the formation of new molecules. This is a chemical change, as it involves the breaking of chemical bonds and the formation of new substances.