AP Chemistry Unit 4 Practice Test 2026 (Chemical Reactions)

Which of the following pairs of compounds is expected to have the compound with largest solubility listed first?

KH 2 PO 4 Iron(III) and nitride ion because both ions have 3 charges of opposite sign KBr and Na 2 S Pb 2+ (aq) + 2Cl - (aq) → PbCl 2 (s)

KBr and Na 2 S

Correct answer: KBr and Na 2 S

Access more questions from this quiz

Continue to AP Chemistry Unit 4 Practice Test 2026 (Chemical Reactions) for more practice questions and the full quiz experience.