give the systematic name of each of the compounds.\nfecl₂:\npbo₂:\ncubr:\nau₂s₃:

give the systematic name of each of the compounds.\nfecl₂:\npbo₂:\ncubr:\nau₂s₃:
Answer
Brief Explanations:
- For $FeCl_2$, iron has a +2 oxidation - state in this compound, so it is named iron(II) chloride.
- In $PbO_2$, lead has a +4 oxidation - state, and it is named lead(IV) oxide.
- For $CuBr$, copper has a +1 oxidation - state, and it is named copper(I) bromide.
- In $Au_2S_3$, gold has a +3 oxidation - state, and it is named gold(III) sulfide.
Answer:
- Iron(II) chloride
- Lead(IV) oxide
- Copper(I) bromide
- Gold(III) sulfide