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Unformatted text preview: Version 009 Quiz 3 sparks (50975) 1 This print-out should have 7 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 10.0 points A gas has a volume of 2.0 L at a pressure of 3.00 atm. What pressure is needed to change the volume to 6.00 L at constant temperature? 1. 4.0 atm 2. 9.0 atm 3. 1.0 atm correct 4. 2.0 atm Explanation: V 1 = 2.00 L P 1 = 3 atm V 2 = 6.00 L Boyles law, P 1 V 1 = P 2 V 2 , relates the vol- ume and pressure of a sample of gas. P 2 = P 1 V 1 V 2 = (3.00 atm) (2.00 L) 6.00 L = 1.0 atm 002 10.0 points It is possible for a molecule to have a negative bond order. 1. false correct 2. true Explanation: bond order = #elec bond- #elec antibond 2 Two atomic orbitals form an equal num- ber of bonding and nonbonding orbitals. The bonding orbital has lower energy than its cor- responding antibonding orbital and receives 2 electrons before the antibonding orbital re- ceives any, and so bonding order will always...
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- Fall '10