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Answer:

Copper(II) sulfate test for water

Pure copper(II) sulfate is white. It is also known as anhydrous copper(II) sulfate because it has no water in it. When water is present in a sample of copper(II) sulfate it turns blue. ... This colour change can be used to detect the presence of water (or water vapour).

Explanation:

Answer:

When water is present in a sample of copper(II) sulfate it turns blue.

Explanation:

When water is present in a sample of copper(II) sulfate it turns blue.