4. Write Lewis structures for the following molecular formulas, and encircle any lone pairs (pairs of nonbonding electrons) in the structures you have drawn. а. НCN b. CH3CHNH С. НСО2Н 5. Classify each bond as nonpolar covalent, polar covalent or ionic. a. S-H b. Р-Н С. С - CI 6. Use electronegativities to predict the direction of the dipole moments of the following bonds. а. С-О b. N-CI С. В-СI

Chemistry
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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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KINDLY ANSWER ALL THE FOLLOWING QUESTIONS GIVEN FROM NUMBERS 4 TO 10.

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4. Write Lewis structures for the following molecular formulas, and encircle any lone
pairs (pairs of nonbonding electrons) in the structures you have drawn.
а. НCN
b. CНЗСHNH
С. НСО2H
5. Classify each bond as nonpolar covalent, polar covalent or ionic.
а. S- H
b. Р-Н
С. С - СІ
6. Use electronegativities to predict the direction of the dipole moments of the
following bonds.
а. С-О
b. N-CI
С. В-СI
7. Draw Lewis structures for the following compounds and ions, showing
appropriate formal charges.
a. NaOCH3
b. (CH3)20-BF3
с. [Н2С-ОН]+
8. Draw the important resonance forms for the following molecules and ions.
b. NO3-
a. H2C=CH-CH2
c. OCHCH=CH--CH2
9. Draw the line-angle structures for the following condensed structural formulas.
a. (CH3)2CHCH2CI
b. (CH3)3COH
С. СН2СНСHО
10. Draw the Lewis structures and predict the hybridization (sp, sp2, sp3), geometry
(linear, trigonal, tetrahedral) and bond angles (180°, 120°, 109.5°) for the central
atoms in the following compounds.
а. Cin CH3ССН
b. C & O in CH3OCH3
c. C & N in CH3CHNCH3
Transcribed Image Text:4. Write Lewis structures for the following molecular formulas, and encircle any lone pairs (pairs of nonbonding electrons) in the structures you have drawn. а. НCN b. CНЗСHNH С. НСО2H 5. Classify each bond as nonpolar covalent, polar covalent or ionic. а. S- H b. Р-Н С. С - СІ 6. Use electronegativities to predict the direction of the dipole moments of the following bonds. а. С-О b. N-CI С. В-СI 7. Draw Lewis structures for the following compounds and ions, showing appropriate formal charges. a. NaOCH3 b. (CH3)20-BF3 с. [Н2С-ОН]+ 8. Draw the important resonance forms for the following molecules and ions. b. NO3- a. H2C=CH-CH2 c. OCHCH=CH--CH2 9. Draw the line-angle structures for the following condensed structural formulas. a. (CH3)2CHCH2CI b. (CH3)3COH С. СН2СНСHО 10. Draw the Lewis structures and predict the hybridization (sp, sp2, sp3), geometry (linear, trigonal, tetrahedral) and bond angles (180°, 120°, 109.5°) for the central atoms in the following compounds. а. Cin CH3ССН b. C & O in CH3OCH3 c. C & N in CH3CHNCH3
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