a shiny brown coloured element x on heating in air becomes a black coloured compound.name the element x and black coloured compound formes
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Blue in color then this X element which given heat
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Element x is copper.
Copper +Oxygen-----Copper oxide
Hope it helps u and make it as brainliest!
Copper +Oxygen-----Copper oxide
Hope it helps u and make it as brainliest!
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