when the powder of a common metal is heated in an open china dish, its color turns black. however. when hydrogen is passed over the hot black substance so formed, it regains it original color. based on the above information answer the following questions. (A) what type of chemical reaction takes place in each of two given steps. (B) name the metal initially taken in the powder form. write balanced chemical equation for both reactions.
Answers
Answered by
5
A-in first case it is decomposition reaction and in the other case is combination reaction
B-the metal is CuO
1- 2Cu+O2---->2CuO
2- CuO + H2---> Cu + H2O
B-the metal is CuO
1- 2Cu+O2---->2CuO
2- CuO + H2---> Cu + H2O
brunomars:
ty
np
Similar questions