Question

What chemical test can be carried out to show that a liquid collected from the sea is water? (color change if the liquid is water)

Answer 1

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Answer 2

Step-by-step explanation:

The chemical test for water includes the cobalt chloride paper test. If water is present it will change from blue to pink colour. Another test is the copper sulphate test. pure form of copper sulphate is white in colour.

Copper (II) sulphate is used to test for water. We use white anhydrous copper (II) sulphate, which contains no water. If water is present, the copper (II) sulphate turns blue. A positive test for the presence of water will mean the copper (II) sulphate turns blue.