(1a) state what would be observed in each case on exposure of three solid substances in watch glasses, labelled X, Y, Z for some hours
(i) watch glass X contained a solid substances which turned from transparent crystals to a white powder
(ii) watch glass Y contained a white powdered solid which turned to a blue crystalline solid
(iii) watch glass Z contained a white solid substance which turned to a colorless solution
(1b) state the phenomenon which is responsible for the observation in 1 (a) (i) (ii) and (iii)?
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Asked by jenny max on 22nd June, 2021
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