Question

A red color metal x when heated in presence of O2 turns black substance y. When hydrogen is

passed over it turns red again.
a) Name x and y.
b) Write a balanced chemical equation for the reactions involved.
please give the right answer.
i will respond to every answer
plzz be fast ​

Answer 1

Answer:

X= Cu

Y= CuO

Explanation:

2Cu + O2 ----> 2CuO

CuO is black in colour

when hydrogen is passes from Copper oxide (CuO) then,

CuO + H2 -----> Cu +H2O

here Cu is again turns to red.