1. WARM-UP 11/25/13
For each of the following chemical equations, fill out a chart like below. An example is given:
H2 + O2  H2O
a. SO2 + O2  SO3
b. Fe2O3 + H2  Fe + H2O
c. P + O2  P4O10
Element
Number in Reactant Side
Number in Product Side H 2 O 1

2. Law of Conservation of Mass Balance Equations
11/25/13 Objective
Demonstrate the Law of Conservation of Mass by balancing equations
11/25/13 Agenda
Law of Conservation of Mass
Balance Equations

3. Law of Conservation of Mass
Mass cannot be created or destroyed, only rearranged.

4. Law of Conservation of Mass
Mass cannot be created or destroyed, only rearranged.

5. Law of Conservation of Mass
Mass cannot be created or destroyed, only rearranged.

6. Balancing Equations a. SO2 + O2  SO3 b. Fe2O3 + H2  Fe + H2O
c. P + O2  P4O10
d. Al + O2  Al2O3
e. Al + N2  AlN
f. Mg + O2  MgO

7. 5th Period – Rm. 402 – Ms. Au-Yeung
Tutoring Today!
5th Period – Rm. 402 – Ms. Au-Yeung

8. Finished Balancing Equations
11/25/13 Homework
Finished Balancing Equations