Question

In laboratory preparation of carbon dioxide gas, 1. Name the chemicals used. 2. what is the method of collection of the gas
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Answer 1

Answer:

(a) Calcium carbonate and dilute hydrochloric acid. (b) By upward displacement of air. (c) CaCO3 + 2HCl → CaCl2 + H2O +ᴄᴏ2