Chemistry, asked by 10432samyukthas, 5 months ago

pls answer this question i will follow u and i will mark brainiest answer

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Answered by Xubair007

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Explanation:

7.the blue colour is due to the light energy being used to promote or excite electrons that are in the atom of the copper when it's combined with other things such as the sulphate or carbonate ions and so on.

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