Question

a reddish brown coloured metal used in electrical wires when powered and heated strongly in open China this turn black
a. identify Metal X and black coloured substance
b. name and define the kind of reaction involved.
c. write the balanced chemical equation for above reaction​

Answer 1

Answer:

Metal X is Copper (Cu)

Black coloured substance is copper oxide(CuO)

The reaction taken place is Chemical Combination.

It is a reaction un which two or more substance give raise to a single product.

2Cu+O2-------》2CuO

Explanation:

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Answer 2

Answer:

a) The metal X is Copper and the black coloured substance is Copper Oxide.

b) It is a Combination Reaction. when two or more compounds combine to form a new compound it is called combination reaction.

c) 2Cu+O2-----2CuO