Chemistry 0620 · IGCSE · Reversible reactions and equilibrium

Reversible reactions and equilibrium — practice question

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

Adecomposition
Bdisplacement
Credox
Dreversible

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