Question

Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions:

Mg₂⁺, Cr₄⁺, Br⁻, S⁻

Answer 1

The empirical formulas of the binary ionic compounds formed from the given ions are: MgBr2, Cr2S3, CuBr, and MgS.

Step-by-step explanation:

The empirical formula of an ionic compound represents the simplest ratio of the ions present in the compound. To determine the empirical formula, we need to combine one cation and one anion to form a neutral compound. Using the provided ions, we can form the following binary ionic compounds:

1. Magnesium bromide (MgBr2) - formed from Mg2+ and Br-
2. Chromium(III) sulfide (Cr2S3) - formed from Cr3+ and S2-
3. Copper(I) bromide (CuBr) - formed from Cu+ and Br-
4. Magnesium sulfide (MgS) - formed from Mg2+ and S2-