Which answer below correctly identifies the type of change and the explanation for the mixture of calcium corbonate and hydrochloric acid?

Physical change because even though gas formation was observed, the calcium carbonate retained its original properties.

Physical change because even though a particle size change was observed, the calcium retained its original properties.

Chemical change because gas formation was observed, which indicated that the calcium carbonate was transformed into a different substance.

Chemical change because a particle size change was observed, which indicated that the calcium carbonate was transformed into a different substance.

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Chemistry

19 January, 06:10

Which answer below correctly identifies the type of change and the explanation for the mixture of calcium corbonate and hydrochloric acid?

Physical change because even though gas formation was observed, the calcium carbonate retained its original properties.

Physical change because even though a particle size change was observed, the calcium retained its original properties.

Chemical change because gas formation was observed, which indicated that the calcium carbonate was transformed into a different substance.

Chemical change because a particle size change was observed, which indicated that the calcium carbonate was transformed into a different substance.

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Answers (2)

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Izayah Benson · Answer 1

Chemical change because gas formation was observed, which indicated that the calcium carbonate was transformed into a different substance.

The formation of gas means that calcium carbonate has lost its chemical identity and converted to something else with a different set of atoms arranged in a different manner.

Terminator · Answer 2

C chemical change because gas formation was observed, which indicated that the calcium carbonate was transformed into a different substance