This practice test has 7 questions on various topics in AP Chemistry. 
Question 1 - calorimetry and heat of combustion
Question 2 - chromatography  and polarity
Question 3 - 
Question 4 - equilibrium and pH
Question 5 - stoichiometry and intermolecular forces
Question 6 - lewis structure and bond enthalpy 
Question 7 - rate law and Le Chatelier