Sample Quizzes are designed to give you an idea of the types of questions you can expect.  Quiz numbers may not exactly agree with currently assigned material, so you may need to examine several quizzes to see the ones that cover the material we are now covering.

Quiz #8

1. For each of the following covalent bonds, draw a figure indicating the direction of the bond dipole, including which end of the bond is positive and which is negative.

H-H

N-Br

H-Cl

N-I

Br-F

C-O

2. Write Lewis Dot structures for each of the following atoms or ions:

N

Br

Cs

Ba²⁺

Kr

P

O^2-

3. Give the TOTAL number of valence electrons in each of the following molecules:

CBr₄ __________________________

NO₂ __________________________

C₆H₆__________________________

Cl₂ __________________________

H₂SO₄ _________________________

4. Show total number of valence electrons and then draw the correct Lewis Dot structure for:

CO

H₂O

NO₃^-

SO₄^2-

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