Question

hey

CuSO4.5H2O ----after heating----> CUSO4 + 5H2O




what is the difference between (.) and (+) sign here​

Answer 1

(.) represents that the crystals of CuSO4 contain water inside them which gives them their blue colour.

(+) denotes that the components of the reactant are separated . Here, the colour of the crystals is white.

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