Question

What is the surest way to determine that the gas being evolved in corbondioxide.
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Answer 1

Answer:

When carbon dioxide is passed through slaked lime (Ca(OH)2), the solution turns milky due to the formation of calcium carbonate (CaCO3).

Ca(OH)2 + CO2 ⇒ CaCO3 + H2O

Answer 2

Explanation:

what do you mean by crystallization?How can we obtain the crystals of the common salt I. e.,sodium chloride (NaCL).