1. N OTES ON A CIDS AND B ASES

4. http://www.youtube.com/watch?v=M8tTELZD5Ek

5. P ROPERTIES OF A CIDS : Taste sour Contains H+, (the more H+, the stronger the acid) Very reactive

6. U SES OF A CIDS : Metal cleaners Batteries Digest food- found in our stomachs Foods Paints Plastics

7. E XAMPLES OF A CIDS : Hydrochloric acid (HCl)- in stomach Citric acid (in citrus fruits like lemons) Acetic acid (vinegar)

8. P ROPERTIES OF B ASES : Taste bitter Contains OH- (the more OH-, the stronger the base) Slippery when wet

9. U SES OF B ASES : Cleansers Drain cleaners Soap Shampoo Laundry detergent

10. E XAMPLES OF B ASES : Sodium hydroxide (NaOH) Ammonia Lime water Ca(OH)2

11. P H S CALE Ranges from 0-14 Numbers 0-6 represent acids 7 is neutral Numbers 8-14 represent bases 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 strongest acid strongest base

12. P H S CALE As you move from pH 0 to pH 14, the concentration of H+ DECREASES (10 times each number) As you move from pH 0 to pH 14, the concentration of OH- INCREASES (10 times each number) Ex: A substance with pH3 is 100 times stronger acid than a substance with pH 5. A substance with pH 8 is 100 times weaker base than a substance with pH 10.