Question

X is a metal on heating metal x with oxygen forms compound y which will be black in colour

Answer 1

X is silver

Y is silver oxide

Hope it helps

Answer 2

Answer:

Hey mate! Here is your answer

X is copper(Cu)and Y is copper oxide(CuO)

Explanation: because when copper heats in the presence of oxygen it forms a black substance copper oxide.

Reaction:

heat

2Cu + O2 ------------> 2CuO

(X) (Y)

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