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CHEM 103 MODULE 5 EXAM
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CHEM 103 MODULE 5 EXAM 2022 Question 1 Click thislink to accessthe Periodic Table. This may be helpfulthroughout the exam. Show the determination of the charge on the ion formed by the Se34 atom. Se34 (nonmetal = gain electrons) 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 4 gain 2e → Se...

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  • March 2, 2022
  • 5
  • 2022/2023
  • Exam (elaborations)
  • Questions & answers

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CHEM 103

MODULE 5 EXAM 2022


Question 1
Click this link to access the Periodic Table. This may be helpful throughout the exam.



Show the determination of the charge on the ion formed by the Se34 atom. Se34
(nonmetal = gain electrons) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4 gain 2e
→ Se-2


Question 2
Click this link to access the Periodic Table. This may be helpful throughout the exam.



H = 2.1
Li = 1.0 Be = 1.5 B = 2.0 C = 2.5 N=
3.0 O= 3.5 F = 4.0

, Na = 1.0 Mg = 1.2 Al = 1.5 Si = 1.8 P=
2.1 S = 2.5 Cl = 3.0
K = 0.8 Ca = 1.0 Ga = 1.6 Ge = 1.8 As =
2.0 Se = 2.4 Br = 2.8


Using the electronegativities from the table above, show the determination
of the polarity of each different type of bond in the following molecule




H-C bond electronegativity difference = 2.5 - 2.1 = 0.4 <0.5
bond is Nonpolar
C-O bond electronegativity difference = 3.5 - 2.5 = 1.0 1.6 - 0.5
bond is Polar

Question 3
Click this link to access the Periodic Table. This may be helpful throughout the exam.



On a piece of scratch paper, draw the Lewis structure for the ClO 3-1 ion. Then
choose the correct Lewis structure for ClO 3-1 from the options listed below.




(B)

Question 4
Click this link to access the Periodic Table. This may be helpful throughout the exam.

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