026 100 points draw the lewis structure for co 1 o c

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H bond is the most polar of these.02610.0 pointsDraw the Lewis structure for CO.1.OC2.OC3.OC4.OC5.OC6.OC7.OC8.OCcorrect9.OC10.OC
Version 369 – Exam 2 – mccord – (50970)7
10eOCorOCThis configuration gives each atom a com-plete octet.02710.0 pointsThe lattice enthalpy of calcium oxide is theenergy change for the reaction1.CaO(s)Ca(g) + O(g)2.CaO(s)Ca2+(g) + O2(g)correct3.Ca(s) +12O2(g)CaO(s)4.Ca(g) + O(g)CaO(g)5.CaO(s)Ca(g) +12O2(g)Explanation:Lattice enthalpy is the energy change atconstant pressure when a 1 mole of an ionicsolid is broken into ions of its componentelements in gaseous form at 298 K, 1 atm.02810.0 pointsThe electronic arrangment is the same as themolecular shape whenWhich of the following has bond angles ofexactly 120?
10.0 pointsA molecule has one lone pair of electrons onthe central atom and three atoms bonded tothe central atom.The central atom followsthe octet rule. What is its electronic arrange-ment and its hybridization?1.trigonal planar;sp22.angular;sp33.tetrahedral;sp24.trigonal planar;sp35.tetrahedral;sp3correct6.pyramidal;sp37.pyramidal;sp2Explanation:One lone pair plus 3 bonded pairs equals4 electronic regions.This means that thecentral atom is tetrahedral and hybridizationissp3.03010.0 points
Version 369 – Exam 2 – mccord – (50970)
0310.0 pointsEXTRA CREDIT QUESTION:A re-minder here to PLEASE bubble in your name,uteid, and your version number correctly. Doit now - don’t wait till the end of the exam.Also, a reminder that there is NO CLASStomorrow (Friday, October 8th). That’s right,you get to SKIP chemistry class. I’ll see youon Monday, the 11th, and we’ll start up onChapter 5.This question starts out at zero pointsbut could very well increase after the grad-ing.Now, if more points are awarded (thecurve) on this assignment, would you likethem added to your score?1.YES, I would like the points and thehigher score.correct2.NO, leave my score alone, I prefer thelower scoreExplanation:This should be a no-brainer. Most studentswant higher scores. If you picked yes, you gotcredit for the question and you got the extrapoints you asked for (if they were grantedby your instructor).

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