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There are three problems with the reaction of pure alkali and acid-base salt.

Soda is salt, not alkali, so soda reacts with acid, alkali, and salt? What are their respective reactions? Here are three experiments to describe the reaction between soda and acid and alkali:
1. Reaction with acid: add the hydrochloric acid to the sodium carbonate solution, the phenomenon is that there will be a large number of bubbles, and the reason for the bubbles is that the reaction generates the gas.
2. With alkali reaction: add 2 ml in a test tube clarification limewater, again add calcium carbonate solution, shock, phenomenon is produces white precipitate, reason is the chemical reaction, the sediment is generated.
3. And the reaction of salt: add 2 ml of calcium chloride solution in a test tube, then add calcium carbonate solution, shock, phenomenon is produces white precipitate, reason is the chemical reaction, the sediment is generated.