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Acids & Bases

Acids & Bases. Acids. Have a concentration of hydronium ions (H 3 0 + ) Properties pH below 7 Turn blue litmus red. Reacts with metals. Sour taste. Turns phenolphthalein clear. Bases. Have concentration of hydroxide ions (OH - ) Properties: pH above 7. Turns red litmus blue.

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Acids & Bases

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  1. Acids & Bases

  2. Acids • Have a concentration of hydronium ions (H30+) • Properties • pH below 7 • Turn blue litmus red. • Reacts with metals. • Sour taste. • Turns phenolphthalein clear.

  3. Bases • Have concentration of hydroxide ions (OH-) • Properties: • pH above 7. • Turns red litmus blue. • Reacts with animal matter. • Bitter taste. • Turns phenolphthalein pink.

  4. Neutralization Reaction • Acid and base produces water and salt • HCl + NaOH H20 + NaCl • Results in a pH of 7 which is neutral

  5. Indicators • Indicator are substances that give the pH of a solution. • Examples: • Litmus paper • pH paper • Phenolphthalein • Phenol red • Thymol blue

  6. Acids at Home • Vinegar • Lemons • Pop • Orange juice

  7. Bases at Home • Antacids • Drain cleaner • Shampoo • Soap • Detergent

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