Time Limit: 4:00:00 Time Left:1:52:32 MAREK OSOWSKI: Attempt 1 Question 13 (4 points) saved Which of the following does not influence the rate of a reaction? O molar mass concentration of reactants surface area temperature Question 14 (4 points) Saved Which of the following is not a physical change? metal expanding when heated dry ice, solid carbon dioxide, undergoing sublimation the vaporization of gasoline O ice melting none of the above Question 15 (4 points) Saved Which part of the visible region of the electromagnetic spectrum has the lowest energy? blue red ultraviolet yellow Question 16