Math, asked by ar450885, 10 months ago

when any two integer are added , we will always get an . this property is called the property of addition of integers

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Answered by AnjelaDIY

Answer:

idk...

oxide formed is black in colour. The black colour is formed due to the oxidation of copper takes place. (b) When hydrogen gas is passed over hot copper oxide, the black coating on the surface turns brown as the reverse reaction takes place and copper is obtained.

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