when a Powder of common metal is heated strongly in an open vessel. It

1.	when a Powder of common metal is heated strongly in an open vessel. It's colour becomes black. But by passing H2 gas over this black compound it regain it's original colour. Answere the following question? 1) Name the metal and black colour compound? 2) Which type of reaction takes place in the steps? 3) Write the balancing chemical equation for two steps?
Answer» Answer : (1) In first step, oxidation reaction occurs and in SECOND step, reduction reaction occurs. (2) The name of METAL is, copper (Cu) and the balanced chemical reaction will be, Oxidation : Reduction : Explanation : Step 1 : When the powder of a cooper metal is heated in an open china dish its color changes to black. The balanced chemical reaction is, This is a oxidation reaction where OXYGEN is gained by the copper metal. step 2 : When hydrogen is PASSED over the HOT black substance that is , it regains its original color and form copper as a metal. The balanced chemical reaction is, It is a reduction reaction where hydrogen is gained by the cooper oxide. Read more on Brainly.in - brainly.in/question/2089217#readmore

when a Powder of common metal is heated strongly in an open vessel. It's colour becomes black. But by passing H2 gas over this black compound it regain it's original colour. Answere the following question? 1) Name the metal and black colour compound? 2) Which type of reaction takes place in the steps? 3) Write the balancing chemical equation for two steps?

Answer»

Answer :

(1) In first step, oxidation reaction occurs and in SECOND step, reduction reaction occurs.

(2) The name of METAL is, copper (Cu) and the balanced chemical reaction will be,

Oxidation :

Reduction :

Explanation :

Step 1 : When the powder of a cooper metal is heated in an open china dish its color changes to black.

The balanced chemical reaction is,

This is a oxidation reaction where OXYGEN is gained by the copper metal.

step 2 : When hydrogen is PASSED over the HOT black substance that is , it regains its original color and form copper as a metal.

The balanced chemical reaction is,

It is a reduction reaction where hydrogen is gained by the cooper oxide.