Formula: Cu3As
The chemical formula for the compound Strontium arsenide is SR3AS2.
The chemical formula for copper (III) arsenide is Cu3As.
Be3As2
Sperrylite is a platinum arsenide mineral with formula: PtAs2 .
Formula: Sn3As2
The chemical formula for the compound Strontium arsenide is SR3AS2.
The chemical formula for copper (III) arsenide is Cu3As.
Formula: Ag3As
Copper arsenide = Cu3As
CuF
Be3As2
Ge3As4
The formula for cuprous sulfide is Cu2S. Copper (I) or cuprous has a +1 charge, whereas Sulfur has a charge of -2. Cu^(-1) + S^(-2) -> Cu2S (The subscript is 2)
Sperrylite is a platinum arsenide mineral with formula: PtAs2 .
Cu3PO4 Copper (I) Phosphate.
Cu2O. Cuprous is Cu+, cupric is Cu2+. Those are old-school names. Copper(I) oxide is a better name.
Formula: Sn3As2