Answer:
Zinc carbonate(s) → Zinc oxide(s) + Carbon dioxide(g)
Explanation:
Zinc carbonate on heating decomposes to zinc oxide and carbon dioxide gas. Zinc carbonate is a white powdery solid. When it is heated strongly, it starts to turn yellow and decompose – carbon dioxide gas ;is evolved, which forms a white precipitate in limewater. This reaction is a decomposition reaction.
