What distinguishes a compound like copper sulfate from an ordinary mixture of copper powder sulfur?

Answer 1

There are two copper oxides.

Copper I oxide (Cu2O) and copper II oxide (CuO) both contain copper and oxygen.

Copper II oxide is a reddish solid and Copper II oxide is a black solid.

Both are insoluble in water.

Copper sulfate (CuSO4) contains copper, sulfur, and oxygen.

It is most often found in its hydrated form as a blue solid, but allso occurs in its anhydrous form as a white solid.

It is soluble in water.

Answer 2

Copper sulfate is a chemical compound where copper atoms are chemically bonded to sulfate ions, while a mixture of copper powder and sulfur would just be a physical combination of the two elements without any chemical bonding. In the compound, copper and sulfur form a specific ratio, giving copper sulfate its distinct properties and chemical behavior unlike a simple mixture.

Answer 3

Cuprous oxide contains monovalent copper ions and has the formula Cu2O; cupric oxide contains divalent copper ions and has the formula CuO.

Answer 4

It's colour ! Ordinary copper ore is reddish in colour, and sulphur is yellow. Copper Sulphate is blue !