Chemistry, 14.10.2019 00:30 cristalcastro901
Which answer below correctly identifies the type of change and the explanation for the change in calcium carbonate?
physical change because even though a state change was observed, the calcium carbonate retained its original properties
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
chemical change because a state change 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
Answers: 2
Chemistry, 21.06.2019 22:30, larreanathalie3523
The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.
Answers: 2
Which answer below correctly identifies the type of change and the explanation for the change in cal...
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