Classify each of the following as ionic or covalent

Question

1. Classify each of the following as ionic or covalent compounds: (Use table 10.1 on Pg 298 in your text book): 

a) H₂O,

b) NaCl

c) MgO

d) Br₂

2. Draw Lewis structures of the following:

a) CO₃^2-

b) CS₂

c) C₂H6

3. Classify the following molecules as polar or nonpolar:

a) H₂O

b) HBr

c) CF₄

4. Use VSEPR theory to predict the shape of following polyatomic ions:

a) Sulfate ion

b) Chlorate ion

c) Periodate ion

5. Why does Aluminum ion have +3 charge?

6. How many Joules are required to change 225 g of ice at 0 ⁰C to steam at 100. ⁰C ?