Chemistry test ba - Study guides, Class notes & Summaries

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MULTIPLE CHOICE QUESTIONS Topic: Atomic Orbitals 1. In quantum mechanics a node (nodal surface or plane) is: A) a place where Ψ is negative. B) a place where Ψ is positive. C) a place where Ψ = 0. D) a place where Ψ2 is large. E) a place where Ψ2 is negative. Ans: C Topic: Atomic Orbitals, Molecular Orbitals 2. When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule, how many molecular orbitals are formed? A) 1 B) 2 C) 3 D) 4 E) 5 Ans: B Topic: A...

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Test Bank For General Chemistry The Essential Concept 7Th Edition Raymond By Chang

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Chemistry: The Central Science, 14e (Brown, et al.) Chapter 3 Chemical Reactions and Reaction Stoichiometry 3.1 Multiple-Choice Questions 1) When the following equation is balanced, the coefficients are ________. C8H18 + O2 → CO2 + H2O A) 2, 3, 4, 4 B) 1, 4, 8, 9 C) 2, 12, 8, 9 D) 4, 4, 32, 36 E) 2, 25, 16, 18 Answer: E Diff: 2 Var: 1 Page Ref: Sec. 3.1 LO: 3.1 GO: G2 2) Of the reactions below, which one is not a combination reaction? A) C + O2 → CO2...

Test Bank For General Chemistry The Essential Concept 7Th Edition Raymond By Chang

General Chemistry The Essential Concept 7Th Edition Raymond By Chang - Test Bank