Chemistry 0620 · IGCSE · Reversible reactions and equilibrium

Reversible reactions and equilibrium — practice question

If hydrated copper(II) sulfate is heated, white copper(II) sulfate is formed. When water is then added, the white copper(II) sulfate becomes blue. Which type of reaction is indicated by these observations?

Adecomposition
Bdisplacement
Credox
Dreversible

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