Common+Acids+and+Bases

= = Use everyday indicators to identify common acids and bases.
 * Standard 3:**

Examples: using grape juice to determine that vinegar is an acid, using juice from boiled red cabbage to determine that baking soda is a base == = = = = =NAMES TO KNOW= Here are a couple of definitions you should know:
 * Acid:** A solution that has a pH of 0 to 6. A solution that has an excess of H+ ions. It comes from the Latin word acidus that means "sharp" or "sour".
 * Base:** A solution that has a pH of 8 to 14. A solution that has an excess of OH- ions. Another word for base is alkali.
 * Aqueous:** A solution that is mainly water. Think about the word aquarium. AQUA means water.
 * Strong Acid:** An acid that has a very low pH (0-4).
 * Strong Base:** A base that has a very high pH (10-14).
 * Weak Acid:** An acid that only partially ionizes in an aqueous solution. That means not every molecule breaks apart. They usually have a pH close to 7 (3-6).
 * Weak Base:** A base that only partially ionizes in an aqueous solution. That means not every molecule breaks apart. They usually have a pH close to 7 (8-10).
 * Neutral:** A solution that has a pH of 7. It is neither acidic nor basic.

Vinegar Carbonated soft drinks || Bar of soap Ammonia Baking soda Antacids ||
 * ~ Common Acids ||~ Common Bases ||
 * Citrus Fruit
 * Red cabbage juice turns bright pink in the presence of an acid, but it turns green or yellow in the presence of a base.
 * Grape juice turns dark red in the presence of an acid, but blue in the presence of a base.
 * Black tea becomes light in the presence of an acid and dark in the presence of a base.
 * Acids have a pH of less than 7
 * Bases have a pH of greater than 7