Copper Sulphate CuSO4
Since the question did not include Oxygen, the answer is Copper Sulphide (CuxSx)
If you have only Copper and Sulphur reacting the product is Copper Sulphide (CuS), not Copper Sulphate (CuSO4).Copper Sulphide is made when Copper and Sulphur are heated together - the product is a black solid.
Copper Sulphate is produced when Copper is reacted either with sulphuric acid, or with a less reactive metal sulphate. Copper Sulphate is usually in the form of a blue solution but can be evaporated to produce a blue crystalline structure.
Copper(II) sulfate
The compound Cu2HPO4 is known as copper(II) hydrogen phosphate.
cuci2 is nothing. CuCl2 with a lowercase L is copper II chloride.
Copper (I) Oxide or Cuprous Oxide
The compound is copper (I) perchlorate Cu(ClO4) The similar compound, copper (II) perchlorate is Cu(ClO4)2
If copper appears in the name of a compound, it indicates that the compound contains copper as one of its constituent elements. The presence of "copper" in the compound's name signifies the inclusion of copper atoms within the chemical structure of the compound.
copper oxide
Copper sulphate.
The formula Co3Cu represents a compound of cobalt and copper. The name of this compound would be tricobalt copper.
Copper Iodite
Copper (I) bromide. Unlike with a zinc compound question I just answered, the (I) here is pretty important; both copper (I) bromide and copper (II) bromide exist and are commercially available.
The compound containing copper and sulfur is called copper(II) sulfide.
copper(II) carbonate or cupric carbonate
Copper(II) sulfate
The compound CuCrO4 is called copper (II) chromate. It is a chemical compound composed of copper, chromium, and oxygen ions.
The name of the ionic compound Cu3PO3 is copper(I) phosphite.
Since it is called copper chloride, seems pretty obvious it's going to be copper.