1. Begin

2. Chapter 8 Chemical Equations and Reactions

3. Section 8.1 Chemical Equations Reading and Writing Chemical Equations Significance of a Chemical Equation Balancing Chemical Equations

4. Reading and Writing Chemical Equations Requirements for chemical equations 1.The equation must represent the known facts. 2.The equation must contain the correct formulas for the reactants and products. 3.The law of conservation of mass must be satisfied.

5. Section 8.1 Chemical Equations Videos

6. Word vs Formula Word equations – – represented by words Formula equations – – represented by symbols

7. Word vs Formula Word equations – – represented by words One molecule of methane plus two molecules of oxygen combine to form one molecule of carbon dioxide and two molecules of water

8. Word vs Formula Formula equations – – represented by symbols CH 4 (g) + O 2 (g) → CO 2 (g) + H 2 O (g)

9. Symbols used in Chemical Equations There are 14 basic symbols Page 236: Table 8-2

10. Section 8.1 Chemical Equations Reading and Writing Chemical Equations Significance of a Chemical Equation Balancing Chemical Equations

11. Reading and Writing Chemical Equations Significance of a Chemical Equation Balancing Chemical Equations