Which substance has nonpolar covalent bonds 1 NaCl 2 NO 2 3 CO 4 O 2 correct

Which substance has nonpolar covalent bonds 1 nacl 2

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Whichsubstancehasnonpolarcovalentbonds? 1.NaCl2.NO23.CO4.O2correctExplanation: 025 10.0 points After constructing the Lewis dot formula for CCl 3 , give its electronic arrangement and molecular shape. 1. trigonal bipyramidal, T-shaped 2. tetrahedral, trigonal pyramidal correct 3. tetrahedral, angular 02610.0 pointsWhich of the following ions has a tetrahe-dral molecular (actual) geometry? N H H H H 027 10.0 points Which of the following statements concerningvalence bond theory is/are true? 2.II, III
Version 392 – Exam 2 – McCord – (53130) 9 Choose the species that is incorrectly matchedwith electronic geometry about the centralatom. 5. PF 3 : pyramidal correct Explanation: 029 10.0 points If the interaction energy between a sodium ionand a chloride ion in table salt is 760 kJ/mol,what is the interaction energy between a zincion (Zn2+) and a sulfide ion (S2) in a hy-pothetical structure in which the inter-ionicdistances are the same as that of NaCl? 1.1.140 kJ/mol2.1140 kJ/mol 3. 3040 kJ/mol correct 4. 1520 kJ/mol 5. 760 kJ/mol Explanation: q Zn = +2 C q S = - 2 C q Na = +1 C q Cl = - 1 C VNaCl= 760 kJ/molIfris the distance between the two ions (thesum of the ionic radii), the energy interactionbetween ions is given by Coulomb’s Law:V=q1q24π ǫ0rr=q1q24π ǫ0VrNaCl=rZnSqNaqCl

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