Question

write the empirical formula of at least four binary ionic compounds that could be formed from the following ions: zn^{2 +}, fe^{2+}, f^{-}, s^{2 - }

Explanation:

Step1: Combine Zn²⁺ with F⁻

To balance charges, we need 2 F⁻ for 1 Zn²⁺. The formula is ZnF₂.

Step2: Combine Zn²⁺ with S²⁻

The charges balance 1:1, so the formula is ZnS.

Step3: Combine Fe²⁺ with F⁻

We need 2 F⁻ for 1 Fe²⁺ to balance charges. The formula is FeF₂.

Step4: Combine Fe²⁺ with S²⁻

The charges balance 1:1, so the formula is FeS.

Answer:

ZnF₂, ZnS, FeF₂, FeS