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Material Type: Exam; Class: General Chemistry II; Subject: Chemistry; University: Colorado State University; Term: Fall 2014;
Typology: Exams
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CHEM113, Fall 2014 – Exam 1A September 18, 2014 Name______________________________ Please mark your exam type (i.e. A or B) on the scantron and write in your student ID number. Please mark all answers clearly on the provided scantron form. You may wish to circle your selected answer on this exam (which you may take with you) so that you can compare your answers with the answers posted on RamCT. There are 25 questions; it is to your advantage to answer all of them. Each correct answer is worth 4 points. 1.Which of the following statements regarding reaction rates and kinetic molecular theory is NOT true? a) Higher concentrations of reactants typically lead to greater reaction rates because of an increase in the number of effective collisions. b) The actual dependence on reaction rate on concentration must be determined experimentally because it depends on the reaction mechanism. c) At t = 0 the maximum rate is usually observed because only reactant molecules are present. d) Collisions between product molecules that reform reactant molecules do not affect the overall rate of the reaction. e) As the reaction proceeds, the concentrations of reactants decreases and the rate decreases.