2 Points - 1. How many electrons are there in each of the Lewis Structures for t

ID: 781346 • Letter: 2

Question

2 Points - 1. How many electrons are there in each of the Lewis Structures for the following compounds? (For example the Lewis Structure of Carbon has 4 electron dots in its Lewis Structure). SO its answer would be 4.

a) Br b) S c) Kr d) He

2 Points - 2. Which two elements are most chemically stable?

A) Br
B) S
C) Kr
D) He
E) Li

1 Point - 3. Draw or input the correct Lewis Structure for the following ionic compound CaCl2?

1 Point - 4. What is the correct Lewis Structure for the following Molecular Compound? COCl2where the carbon is the central atom?

1 Point - 5. Determine whether each compound is ionic or molecular?

Put the answers in the correct order.

a) K2O

b) CHClO (carbon is the central atom)

c) SrS

d) CH3Cl

A) a) ionic b) ionic c) molecular d) molecular
B) a) ionic b) molecular c) molecular d) ionic
C) a) ionic b) molecular c) ionic d) molecular
D) a) molecular b) molecular c) ionic d) ionic
E) a) molecular b) ionic c) ionic d) molecular

2 Points - 6. Use VSEPR Theory to determine the molecular geometry of the following molecules:

A. I2

B. PCl3

C. SCl2

D. Cl2CO (carbon is the central atom)

Bent

Linear

Pyramidal

Trigonal Planar

1 Point - 7. Determine whether each molecule is polar P or nonpolar N.

So for example Carbon Dioxide is nonpolar so the correct answer is N

a) NH3 This molecule is

b) CCl4 This molecule is

c)NO This molecule is

d) H2 This molecule is