Question

how is carbon dioxide gas collected during laboratory preparation​

Answer 1

Answer:

Making carbon dioxide

• Carbon dioxide is produced whenever an acid reacts with a carbonate. This makes carbon dioxide easy to make in the laboratory.
• Calcium carbonate and hydrochloric acid are usually used because they are cheap and easy to obtain.

• calcium carbonate + hydrochloric acid → calcium chloride + water + carbon dioxide

• Carbon dioxide is slightly soluble in water and denser than air, so another way to collect it is in a dry, upright gas jar. As the carbon dioxide falls out of the delivery tube and into the gas jar, it pushes the less dense air out of the top of the gas jar.

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Answer 2

Answer:

Carbon dioxide is produced whenever an acid reacts with a carbonate. This makes carbon dioxide easy to make in the laboratory. ... Carbon dioxide is slightly soluble in water and denser than air, so another way to collect it is in a dry, upright gas jar.

Explanation:

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