Chemistry MCAT Practice Questions
671 free Chemistry MCAT-style practice questions, covering topics like Atomic Structure, The Periodic Table, Bonding and Chemical Interactions, Compounds and Stoichiometry, Chemical Kinetics, Equilibrium, and more.
What is the oxidation number of chlorine in HClO3?At what conditions are real gases most likely to behave like ideal gases?Which of the following is a state function?Which of the following statements about oxidation numbers is true?In a galvanic cell, which electrode serves as the site of oxidation?Which of the following statements about the ideal gas law is correct?Which of the following is an example of an exothermic process?Which of the following statements is true about equilibrium?A solution is prepared by dissolving 0.5 moles of a nonvolatile solute in 2.0 moles of water. If the vapor…What is the equivalence point in a titration?Which of the following statements about mass percent is true?The Gibbs free energy change (ΔG) for a reaction is negative. This indicates that:A compound is found to have the following percent composition: 40% carbon, 6.67% hydrogen, and 53.33% oxygen. What is the…Which of the following compounds is an example of an ionic compound?Which of the following statements about a saturated solution is true?Which of the following represents the correct coefficients to balance the chemical equation: H2 + O2 → H2O?In an isolated system, which of the following statements is true?Which of the following gas samples will have the highest average speed of gas molecules at the same temperature?Consider the ions Li+, Na+, K+, and Rb+. Which of these ions has the smallest ionic radius?Which of the following represents the empirical formula of a compound?Which of the following statements best describes Rutherford's contribution to the atomic model?Which of the following statements about the solubility product constant (Ksp) is true?Which of the following is a state function?Which of the following statements accurately describes the behavior of an ideal solution?A reaction with a second-order rate law:The rate constant for a certain reaction is found to decrease by a factor of 3 when the temperature is…When comparing the boiling points of noble gases in the same period of the periodic table, which of the following…In a galvanic cell utilizing the reaction: Zn(s) + Cu^{2+}(aq) → Zn^{2+}(aq) + Cu(s), which of the following changes would…Which of the following statements is true regarding electrolytic cells?Given the following ions: I. Carbonate (CO3^2-) II. Phosphate (PO4^3-) III. Sulfate (SO4^2-) IV. Nitrate (NO3^-) Which of these ions…A solution is prepared by dissolving 10 grams of a monoprotic acid in enough water to make 500 mL of…Which of the following substances has the highest boiling point?Which of the following solutes would produce the highest boiling point elevation when dissolved in a given solvent?What is the relationship between the equilibrium constant (K) and the reaction quotient (Q)?Which of the following is a colligative property of a solution?Which of the following statements regarding Raoult's Law is TRUE?How does increasing the temperature affect the equilibrium position of an endothermic reaction?The Arrhenius equation indicates that the rate constant (k) of a reaction is directly proportional to which of the following…Which of the following is true about exothermic reactions?The enthalpy change (ΔH) for areaction is positive. Which of the following statements is true?Which of the following factors would NOT affect the rate of dissolution of a solid solute in a solvent?Which of the following molecules violates the octet rule?Which factor primarily determines the rate of a chemical reaction?Consider the reaction: A + 2B ⟶ C. If the reaction rate is found to be dependent only on the…Which element has the symbol Fe?What is the empirical formula of a compound containing 3 moles of carbon and 8 moles of hydrogen?The reaction order with respect to a particular reactant is determined by?Which of the following statements about ideal gases is true?According to the Brønsted-Lowry theory, an acid is defined as a substance that:How does an increase in reactant concentration affect the rate of a reaction?