Conclusion
1. A dilute acid and a carbonate forms carbon dioxide gas2. Dilute acid + carbonate--> salt+ water+ carbon dioxide
3.
4. Use limewater to test for carbon dioxide released during the reaction between a dilute acid and carbonate. If the gas is carbon dioxide, white precipitate will be formed in the limewater.
5a. carbon dioxide is acidic
5b. Bubble the sample through a delivery tube into a test tube of alkaline, as carbon dioxide is acidic, the alkaline will neutralise the gas.
Exercise
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