5-3 Describe the dissolution of ionic and molecular compounds in water

5-3-1. Which figure below best represents an aqueous solution of CaCl₂?

5-3-2. Which figures below best represent aqueous solutions of HF and HCl?
A. A for both,
B. B for both,
C. HF-B, HCl-A,
D. HF-A, HCl-B

5-3-3. Which of the following best represents the dissolution of
CaCl₂(s) in water?
A. CaCl₂(s) → Ca²⁺(aq) + 2 Cl^-(aq)
B. CaCl₂(s) → CaCl₂(aq)
C.CaCl₂(s) → Ca²⁺(aq) + Cl₂^2-(aq)

5-3-4.Which of the following best represents the dissolution of methanol, CH₃OH(l), in water?
A. CH₃OH(l) → CH₃OH(aq)
B. CH₃OH(l) → CH₃⁺(aq) + OH^-(aq)
C. CH₃OH(l) → CH₃O^-(aq) + H⁺(aq)
D. CH₃OH(l) + H₂O(l) → CH₃OH₂⁺(aq) + OH^-(aq)