Chemistry, asked by pranatikm, 10 months ago

9. A change of colour is an indicator of what? Is this always the case? (think about spray-painting a metal car)
thank you

Answers

Answered by zameendaar
1

Answer:

A change of color can indicate a physical or a chemical change. For example, it is a physical change when a car is painted, but it is a chemical change when   Copper reacts with oxygen on heating to form black Copper Oxide (CuO)

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