Which answer below correctly identifies the type of change and the explanation for the heating of copper(II) sulfate pentahydrate?

Heating copper(II) sulfate pentahydrate drives off water as water vapor and changes the solid’s color from blue to white. The release of gas together with the color change shows that the hydrate has been transformed into a different substance, so this is a chemical change. A temperature change alone, as described in choice D, does not establish that a chemical change occurred.

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