2
practice testMultiple Choice

Practice Test

Question 2 • Physical Science

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

Answer
A
The atoms in hydrogen peroxide are breaking apart and recombining into the original molecules.
B
The molecules of hydrogen peroxide remain intact but move more quickly to allow evaporation.
C
The atoms in hydrogen peroxide are breaking apart and forming new types of molecules.
D
The molecules of hydrogen peroxide remain intact as new types of molecules form and move out of the liquid.
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When hydrogen peroxide bubbles, it is undergoing…