Question

How are copper sulfate and copper sulfide different in term of the elements they contain

Answer 1

Copper sulphide has the formula CuS  and copper sulphate is CuSO4

CuS  is a compound of sulphur and copper only  while CuSO4 has these 2 elements plus Oxygen 

Answer 2

Answer: Copper sulfate has oxygen element in it while copper sulfide does not have.

Explanation:

Copper sulfate is formed by the combination of copper and sulfate ions. The chemical formula for this compound is $CuSO_4$

It is formed by the combination of atoms of copper, sulfur and oxygen elements.

Copper sulfide is formed by the combination of copper and sulfide ions. The chemical formula for this compound is $CuS$

It is formed by the combination of atoms of copper and sulfur elements.

Hence, copper sulfate has oxygen element in it while copper sulfide does not have.