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CHAPTER 4 (Sections 4.1 - 4.4) PRACTICE QUIZ Name Gabriel Chan MULTIPLE CHOICE ( 1 . The particle diagram above represents an aqueous solution of an ionic compound. The smaller circles represent cations and the larger circles represent anions. Water molecules are omitted for clarity. Which of the following solutes does the diagram best represent? callz Mgo (C) potassium bromide KBr (D) sodium sulfide NAZS 2. Which of the following choices best represents what happens when solid NH4NO3 is dissolved into water? (A) NH4NO3(S) NH4NO3(aq) (B) NH4NO3(S) NH4*(aq) + NO3 (aq) "CI NH4NO3(S) NH3(aq) + H*(aq) + NO3-(aq) NHANO3(S) - NH3(aq) + OH-(aq) + NO2-(aq)