Question

5 multiple choice 5 points
select the correct formula for carbon disulfide.
cs
cs₂
c₃s₄
c₂s₂
6 multiple choice 5 points
select the correct formula for iron (iv) sulfite.
fe₄(so₃)₃
fe₃(so₄)₄
fe(so₃)₂
feso₃

Explanation:

Step1: Analyze carbon disulfide

Carbon is C, "disulfide" means 2 sulfur (S) atoms. Formula: $\text{CS}_2$

Step2: Analyze iron (IV) sulfite

Iron(IV) has charge $+4$, sulfite ion is $\text{SO}_3^{2-}$. Balance charges: $+4 + 2\times(-2)=0$. Formula: $\text{Fe(SO}_3\text{)}_2$

Answer:

1. $\text{CS}_2$
2. $\text{Fe(SO}_3\text{)}_2$