Question

21 multiple choice 1 point which gas is least soluble at 10 °c? o nacl o cacl₂ o ce₂(so₄)₃ o co₂ clear my selection

Explanation:

Step1: Identify substance types

NaCl, CaCl₂, and Ce₂(SO₄)₃ are salts, not gases. CO₂ is a gas.

Step2: Analyze question requirement

The question asks for the least - soluble gas at 10°C. Since the first three options are salts, they are incorrect.

Answer:

D. CO₂