Answer To 2022-2023 Honors Chem328 Review HW For Bonding And Molecular Geometry Test

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Answers to 2022-2023 Honors Chem328 Review HW for Bonding and Molecular Geometry Test

1) After bonding (moving valence electron, ve-), all atoms want 8ve- around it except H - 2ve-, Be - 4ve-, B - 6ve- and element with 3rd energy level or greater can exceed 8ve-.

2a) i) Cations of the metal element and ii) "sea of free flowing ve- (delocalized ve-)

2b) Will discuss

3a) ions (charged atom or atoms that have lost or gained ve-

3b) Metals - cations

3c) non-metal, gains ve-, anion

3d) ΔEN >= 1.8

3e) The number of each ion needed so the total negative charge equals total positive charge

3f) Will discuss

4a) share, covalent bond, molecule (also polyatomic ions)

4b) ΔEN < 1.8

4c) Subscript is the number of each type of atom that are sharing their ve-

4d) Will discuss

4e) Polyatomic ions. It is different from molecular compounds because the polyatomic ion atoms need more or less ve- to follow the Rule of Eight.

5a) Number of shared ve-

5b) SB, DB, TB

5c) TB, DB, SB

6a) Ca - 1.0 , Br - 2.8, ΔEN = 2.8-1.0 = 1.8, Ionic bond (IC or ions)
6b) N - 3.0 , O - 3.5, ΔEN = 3.5-3.0 = 0.5, Covalent bond
6c) Cr , Ag Two metals so Metallic bond (don't use EN)

Part II

a) C1Cl4, 32ve-

b) PO33-, 26ve-

c) NO31-, 24ve-

d) S1Br6, 48ve-

Part III

a) Tetrasulfur nonachloride

b) S1O3

c) Nitrogen dioxide

d) F5Cl1

e) H1Cl1O3

Part IV (Answers to LDS are above)

a) C1Cl4
b) PO33-
c) NO31-
d) S1Br6

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Last edited February 15, 2023 1:41 pm (diff)