1. EQUATIONS AND DIAGRAMS

2. Diagrams & Balanced Equations:
You need to be able to draw &/or identify balanced equations using models
Ex. H2O
Ex. Cl2
Hydrogen
Oxygen
Chlorine

3. +  Ex. #1 C + O2  CO2 Given the balanced equation,
A model of this equation is… + 
Let: represent C
represent O

4. +  Ex. #2 2Mg + O2  2MgO Given the balanced equation,
A model of this equation is… + 
Let: represent Mg
represent O

5. Ex. #3
Draw a model for the following reaction:
Mg + 2HCl  H2 + MgCl2 +  +
Let: represent Mg
represent H
represent Cl

6. +  + Ex. #4 LiOH + HF  LiF + H2O Let: represent Li represent H
Draw a model to represent the neutralization reaction below.
LiOH + HF  LiF + H2O +  +
Let: represent Li represent H
represent O represent F

7. +  + Ex. #5 Mg(OH)2 + 2HCl  MgCl2 + 2H2O
Draw a model to represent the neutralization reaction below.
Mg(OH) HCl  MgCl H2O +  +
Let: represent Mg represent H
represent O represent Cl

8. Ex. #6
Which model correctly represents the balanced equation below?
2H2 + O2  2H2O
Let: represent H represent O A +  B + +  C + 

9. Practice:
Worksheet #12