Question

what happens when (a) baking soda is heated (b)blue colour copper sulphate crystals are heated (c)water is added to lime?

Answer 1

Explanation:

a) Baking soda, or sodium bicarbonate (NaHCO3), is a chemical that can undergo a decomposition reaction when heated. ... The produced carbon dioxide gas makes baked goods rise! The higher the temperature of the sodium bicarbonate, the faster it will decompose. Only sodium carbonate will remain as a solid product.

b). Hydrated copper sulfate has 5 molecules of water of crystallization and when it is heated it loses these water molecules become anhydrous and from blue color to colorless form.

c) Adding water to the lime produces slaked lime (calcium hydroxide) in an exothermic reaction. Some of the calcium hydroxide dissolves in the water producing an alkaline solution called limewater.

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