Blue crystals are mixed with water. After mixing, what remains is a clear blue liquid with a white powder at the bottom. After heating the mixture, only blue crystals remain. Is this a chemical change or a physical one? Explain.
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Physical Change
Physical changes are changes in which no bonds are broken or formed. This means that the same types of compounds or elements that were there at the beginning of the change are there at the end of the change. Because the ending materials are the same as the beginning materials, the properties (such as color, boiling point, etc.) will also be the same. Physical changes involve moving molecules around, but not changing them. Some types of physical changes include:.
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