Question

or the last 2 questions, write the answer on the bottom. write the chemical formula for the compound formed from k⁺ and s²⁻ 37. name this compound: fe(oh)₃

Explanation:

For the compound from \( K^+ \) and \( S^{2-} \):

Step1: Determine ion charges

\( K^+ \) has a +1 charge, \( S^{2-} \) has a -2 charge.

Step2: Balance charges

To balance, we need 2 \( K^+ \) (total +2) and 1 \( S^{2-} \) (total -2).

Step3: Write formula

The formula is \( K_2S \).

Step1: Identify ions

\( Fe^{3+} \) (iron(III) ion) and \( OH^- \) (hydroxide ion).

Step2: Name using ion names

Combine the cation (with charge indicated) and anion. So it's iron(III) hydroxide.

Answer:

\( K_2S \)

For naming \( Fe(OH)_3 \):