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Step 2: Calcium Carbonate (Analysis)

Which answer below correctly identifies the type of change and the explanation for the change in calcium carbonate?

A. Physical change because even though a state change was observed, the calcium carbonate retained its original properties.
B. Physical change because even though a particle size change was observed, the calcium carbonate retained its original properties and was not transformed into a new substance.
C. Chemical change because a state change was observed, which indicated that the calcium carbonate was transformed into a different substance.
D. Chemical change because a particle size change was observed, which indicated that the calcium carbonate was transformed into a different substance.

Physical change: The correct answer is physical change because even though a particle size change was observed, the calcium carbonate retained its original properties. In this case, the properties of calcium carbonate remained the same despite a change in particle size, indicating a physical change.

Chemical change: The explanation for a chemical change is when a substance undergoes a transformation into a different substance, such as the production of carbon dioxide in the reaction of calcium carbonate with hydrochloric acid.

Learn more about Chemical Changes in Calcium Carbonate here:

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