Question

if combining cation a with a +3 charge and anion x with a -3 char would we write the compound? a ax b a3x3 c 3ax

Explanation:

Step1: Balance compound charge

The total positive charge from cation $\text{A}^{3+}$ is $+3$, and total negative charge from anion $\text{X}^{3-}$ is $-3$. To balance the overall charge to 0, we need 1 of each ion: $1\times(+3) + 1\times(-3) = 0$.

Step2: Write neutral formula

Use the ratio of ions (1:1) to write the compound formula, omitting subscripts of 1.

Answer:

A. AX