Question

write the formulas for each of the ionic compound formed from the given cation and anion. part 1 of 2 li⁺ and sulfate anion (so₄²⁻).

Explanation:

Step1: Determine ion charges

Lithium ion (\( \text{Li}^+ \)) has a +1 charge, sulfate anion (\( \text{SO}_4^{2-} \)) has a -2 charge.

Step2: Balance charges

To balance the charges, we need 2 \( \text{Li}^+ \) ions (total +2 charge) to balance 1 \( \text{SO}_4^{2-} \) ion (total -2 charge).

Step3: Write the formula

The formula is \( \text{Li}_2\text{SO}_4 \) (using the criss - cross method: the magnitude of the charge of one ion becomes the subscript of the other ion).

Answer:

\( \text{Li}_2\text{SO}_4 \)