Question

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

Answer:

1st statement

Explanation:

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Answer 2

The following statement best describes what is happening - The atoms in hydrogen peroxide are breaking apart and forming new types of molecules.

• Hydrogen peroxide is broken down by the enzyme catalase to form oxygen and water. The bubbles arise due to the liberation of oxygen gas during the reaction.
• Thus, the chemical change is the hydrogen peroxide breaking apart and forming new types of molecules, viz. oxygen and water.
• Hydrogen peroxide does not break and recombine here. Nor is hydrogen peroxide remaining intact. So, other options are not relevant.