Question

1. which of the following rows identifies the compound name and iupac acid name for the compound hclo₂(aq)?

Explanation:

1. The compound $\text{HClO}_2(aq)$ consists of the hydrogen cation ($\text{H}^+$) and the chlorite anion ($\text{ClO}_2^-$). When naming an ionic compound with hydrogen and a polyatomic anion, the name is "hydrogen [anion name]".
2. For IUPAC acid naming, oxyacids with the "-ite" anion suffix use the "-ous acid" suffix, and since it is in aqueous solution, we specify "aqueous". The chlorite anion forms chlorous acid.
3. Matching this, the correct pair is hydrogen chlorite (compound name) and aqueous chlorous acid (IUPAC acid name).

Answer:

1. The correct row: hydrogen chlorite, aqueous chlorous acid (the first row option)