CHEM20ASG2-4-KEY - 3 Arrange the bonds in sets(a and(b...

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NAME ___________ KEY _____________ CHEMISTRY 20 ASSIGNMENT 2-4 TOPIC(S) COVERED: Text (31-43) TOTAL MARKS: 19 DIRECTIONS: Answer all questions on this page. 1. Draw structural diagrams for each of the following. (10 marks) a) NH 3(g) b) CH 4(g) c) CF 4(g) d) AsH 3(g) e) H 2 S (g) f) H 2 O 2(l) g) ClNO (g) h) C 2 H 4(g) i) HOCl (g) j) C 2 H 2(g) 1
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2. For each of the following pairs of atoms, predict whether a bond between them will be non-polar covalent, polar covalent, or mostly ionic: (7 marks) (a) EN 1.43, therefore the bond is polar covalent (b) _ EN _ 0.40, so the bond is polar covalent (c) _ EN _ 0, so the bond is non-polar covalent (d) _ EN _ 1.54, so the bond is ionic (e) _ EN _ 0.30, so the bond is polar covalent (f) _ EN _ 3.05, so the bond is ionic (g) _ EN _ 1.61, so the bond is ionic
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Unformatted text preview: 3. Arrange the bonds in sets (a) and (b) below in order of increasing polarity: (2 marks) a) hydrogen bonded to chlorine, oxygen bonded to nitrogen, carbon bonded to sulfur, sodium bonded to chlorine carbon bonded to sulfur (_ EN _ 0.03), oxygen bonded to nitrogen (_ EN _ 0.40), hydrogen bonded to chlorine (_ EN _ 0.96), sodium bonded to chlorine (_ EN _ 2.23). b) carbon bonded to chlorine, magnesium bonded to chlorine, phosphorous bonded to oxygen, nitrogen bonded to nitrogen nitrogen bonded to nitrogen (_ EN _ 0), carbon bonded to chlorine (_ EN _ 0.61), phosphorus bonded to oxygen (_ EN _ 1.25), magnesium bonded to chlorine (_ EN _ 1.85). 2...
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CHEM20ASG2-4-KEY - 3 Arrange the bonds in sets(a and(b...

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