Chemistry, asked by ramya1889, 2 months ago

I have read that when oxygen is burnt black powder is formed and when exposed to air, green colour is formed. In both the cases, copper is reacted with oxygen only. But, why is the change? ​

Answers

Answered by prapti483
0

Explanation:

Sodium is highly reactive metal. It reacts with oxygen in air at room temperature, the reaction is highly exothermic. To prevent this sodium is kept preserved under kerosene. Sodium does not react with kerosene.

Answered by 20umic17
0

Explanation:

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