1. Acids, Bases & pH

2. Acids Has positive hydrogen ions (H+) Has positive hydrogen ions (H+) Sour Taste Sour Taste Reacts with Metals and Carbonates Reacts with Metals and Carbonates Turns blue litmus paper red Turns blue litmus paper red Acids are found in your body to digest food, in some foods, cleaning supplies, fertilizers, and car batteries Acids are found in your body to digest food, in some foods, cleaning supplies, fertilizers, and car batteries

3. Bases Has negative hydroxide ions (OH)- Has negative hydroxide ions (OH)- Bitter Taste Bitter Taste Feels slippery Feels slippery Turns red litmus paper blue Turns red litmus paper blue Bases are found in baking soda, household cleaners, milk of magnesia, and cement Bases are found in baking soda, household cleaners, milk of magnesia, and cement

4. Indicator substance that changes color in the presence of an acid or base substance that changes color in the presence of an acid or base Examples include litmus paper, pH paper, cabbage juice Examples include litmus paper, pH paper, cabbage juice

5. Neutralization Acids and bases can neutralize one another when the H+ of the acid and the OH- of the base react to form H 2 O. Acids and bases can neutralize one another when the H+ of the acid and the OH- of the base react to form H 2 O. Neutralization- acid + base = salt + H 2 O Neutralization- acid + base = salt + H 2 O HCl + KOH KCl + H 2 O HCl + KOH KCl + H 2 O

6. pH Scale measure of the H+ ion concentration in a solution measure of the H+ ion concentration in a solution 7 is neutral (neither acidic nor basic) 7 is neutral (neither acidic nor basic) < 7 is acidic < 7 is acidic > 7 is basic > 7 is basic