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Acids and Bases

Acids and Bases. What is the pH scale?. Ions created from water. If a water molecule breaks apart two ions form:. Hydrogen Ion. The hydrogen ion is formed from one of the hydrogen atoms. The hydrogen ion has lost its electron so it has a positive charge . H +. Hydroxide Ion. OH -.

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Acids and Bases

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  1. Acids and Bases What is the pH scale?

  2. Ions created from water • If a water molecule breaks apart two ions form:

  3. Hydrogen Ion • The hydrogen ion is formed from one of the hydrogen atoms. • The hydrogen ion has lost its electron so it has a positive charge. H+

  4. Hydroxide Ion OH- • The oxygen and the other hydrogen atom stay connected together and are called the hydroxide ion • The hydroxide ion gained an electron in the split so it has a negative charge

  5. Basic • Substances dissolved in water can create different amounts of H+ or OH-ions • 0 is the most acidic – many H+ ions, few OH- ions • 7 is neutral – equal H+and OH- ions • 14 is the most basic – few H+ ions, many OH- ions

  6. Acid or Base? H+ Cl- This is hydrochloric acid Hydrochloric acid is produced in your stomach

  7. Acid or Base? H+ This is carbonic acid Carbonic acid gives soda its fizz

  8. Acid or Base? OH- This sodium hydroxide, a strong base Sodium hydroxide is used in drain pipe cleaners to dissolve clumps of hair that clog a pipe

  9. Acid or Base? H+ OH- Did I trick you? Water is neutral

  10. Short Video on Acid Rain http://www.youtube.com/watch?v=Nc6j7zz1_do&feature=related

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