Question

a new substance formed in gas​

Answer 1

Answer:

Carbon , a brittle, black solid , water vapour and a colorless gas.

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Answer 2

Answer:

There are signs that a chemical reaction occurs. Bubbles form, a gas is given off, and the beaker gets very hot. The most important sign that a chemical reaction occurs is the formation of new substances. The new substances are carbon, a brittle black solid, and water vapor, a colorless gas.

Explanation:

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