Match with O for organic and I for inorganic for each compound.

NaS

C3H6

SO2

HI

C2H2

Organic compounds: C₃H₆, and C₂H₂.

Inorganic compounds: NaS, SO₂, and HI.

Explanation:

Organic compounds are the molecules that have a carbon backbone with hydrogen atoms in its structure.

While, inorganic molecules are composed of other elements. They can contain hydrogen or carbon, but if they have both, they are organic.

So:

Organic compounds are C₃H₆, and C₂H₂.

Inorganic compounds are NaS, SO₂, and HI.