1. Chapter 2: Chemical Basis of Life Part II: Chemical Reactions Acids and Bases Inorganic Substances

2. Chemical Reactions Form or break bonds between atoms, molecules, or ions Parts of a chemical reaction: –Reactants –Products

3. Chemical Reactions Synthesis Decomposition Exchange Reaction

4. Chemical Reactions Reversible Reactions Catalysts –1. –2. –3.

5. Acids, Bases, and Salts Electrolytes

6. Fig. 2.9

7. Acids, Bases, and Salts Acids: Bases:

8. Salts: –Basic Formula: –Example: Acids, Bases, and Salts

10. Acid and Base Concentrations pH scale- 0_______________7_______________14 Acidic Neutral Basic (high [H+]) (low [H+])

11. Each number (0-14) on the pH scale represents… Example:.1 grams H + /L = pH of _____.001 grams H + /L =pH of _____ Acid and Base Concentrations

13. Neutral 1. 2. H 2 O  H + + OH - _________ solutions- [H + ] > [OH - ] _________ solutions- [H + ] < [OH - ] Acid and Base Concentrations

14. Fig. 2.10

15. pH in the human body Normal blood pH: Alkalosis: –1. –2. Acidosis: –1. –2. Buffers:

16. Chemical Contents of Cells Organic substances –1. –2. –3. Inorganic substances –1. –2.

17. Inorganic Substances Water –1. –2. Oxygen –1. –2. Carbon Dioxide Inorganic Salts –Ex. –1. –2.