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

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

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

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

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

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

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

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