Question

Match the following
1. Precipitate
2. Hydrogen gas
3. Hydrogen sulfide gas
4. ammonia formation
5. Melting of ice

Answer 1

Answer:

1) Precipitate - Insoluble solid

2) Hydrogen gas - Pop sound

3) Hydrogen sulfide gas - Rotten egg smell

4) Ammonia formation - Exothermic

5) Melting of ice - Endothermic

Explanation:

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