2. Acids Generate Ions HNO 3 + H 2 O  H 3 O + + NO 3

12. pH Scale

13. pH of Common Substances Timberlake, Chemistry 7 th Edition, page 335

14. Reactions with indicators Indicator Acid color Neutral color Base color Phenolphthalein Colorless Faint pink Dark pink Bromthymol blue Yellow Green Blue Litmus Red ----- Blue

20. Rapid changes in pH can kill fish and other organisms in lakes and streams. Soil pH is affected and can kill plants and create sinkholes

28. mouth esophagus stomach small intestine large intestine Digestive system

29. Acids, Bases, and Salts The End