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Copyright © 2017. The College Board. These materials are part of a College Board program. Use or distribution of these materials online orin print beyond your school’s participation in the program is prohibited.Page 45 of 65Lowering [Al3+] causes an increase in the cell voltage. The value ofQwill fall below 1.0 and thelog term in the Nernst equation will become negative. This causes the value of Ecellto becomemore positive.ORA decrease in a product concentration will increase the spontaneity of the reaction, increasingthe value ofEcell.Part G1 point is earned for indicating that Ecellincreases.1 point is earned for the correct justification.Lowering [Al3+] causes an increase in the cell voltage. The value ofQwill fall below 1.0 and thelog term in the Nernst equation will become negative. This causes the value of Ecellto becomemore positive.ORA decrease in a product concentration will increase the spontaneity of the reaction, increasingthe value ofEcell.012The student response earns two of the following points:1 point is earned for indicating that Ecellincreases.1 point is earned for the correct justification.Lowering [Al3+] causes an increase in the cell voltage. The value ofQwill fall below 1.0 and thelog term in the Nernst equation will become negative. This causes the value of Ecellto become
AP ChemistryScoring GuideExam 1 reviewCopyright © 2017. The College Board. These materials are part of a College Board program. Use or distribution of these materials online orin print beyond your school’s participation in the program is prohibited.Page 46 of 65
20.Consider atoms of the following elements. Assume that the atoms are in the ground state.The atom that contains exactly two unpaired electronsASBCaCGaDSbEBr21.Which of the following ground-state electron configurations represents the atom that hasthe lowest first-ionization energy?ABCD
AP ChemistryScoring GuideExam 1 reviewCopyright © 2017. The College Board. These materials are part of a College Board program. Use or distribution of these materials online orin print beyond your school’s participation in the program is prohibited.Page 47 of 6522.Which of the following best represents the ground-state electron configuration for an atomof selenium?

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