A little more information is needed. Rhenium is a transition metal, and as such, can have multiple valence states. If an ionic charge is known, for example, +2, then it can be assumed that the formula for the oxide would be RhO. If percent composition by mass is known, for example, 86.5% rhenium by mass, then math can be done to determine the formula of the oxide, which in this case, would also be RhO.
It depends since rhenium is a multivalent metal. If it's charge is +4 then, Re3As4. If +7 then, Re3As7.
The chemical formula for the compound Strontium arsenide is SR3AS2.
The chemical formula for copper (III) arsenide is Cu3As.
Formula: Cu3As
Be3As2
Iron (III) Arsenide
The chemical formula for the compound Strontium arsenide is SR3AS2.
Rubidium does not have a formula but a symbol: Rb.
The chemical formula for copper (III) arsenide is Cu3As.
The formula for manganese(VII) arsenide is Mn3As7.
Copper arsenide = Cu3As
The chemical formula for rubidium phosphate is Rb3PO4.
Formula: Ag3As
Formula: Cu3As
InAs
AlAs
The chemical formula for Rubidium Oxide is the formula: Rb2O.
Rb2CO3 for rubidium carbonate