Which statement best distinguishes strong electrolytes from weak electrolytes and gives two examples of each?

• A. Strong electrolytes dissociate completely into ions in solution (NaCl, HNO3); Weak electrolytes partially ionize (NH3, CH3COOH).
• B. Strong electrolytes partially ionize (NH3); Weak electrolytes dissociate completely (NaCl, HNO3).
• C. Both types fully ionize in solution.
• D. Neither type ionizes in solution.

Answer: (A)