Ch. 3 Sec. 3-4 Acids and Bases
When we think of acids and bases, we tend to think of chemistry lab acids and bases like But we are surrounded by acids an...
Lemons to be sour Acids cause…
Acids cause… Cavities in your teeth
 
acids <ul><li>Taste sour </li></ul><ul><li>React w/ metals & carbonates-produce H gas </li></ul>
acids <ul><li>Turn  blue  litmus paper  red </li></ul>
<ul><li>form  hydrogen  ions (H+) in water </li></ul>acids
 
corrosive <ul><li>eat away @ other materials </li></ul>
<ul><li>Taste bitter </li></ul><ul><li>Feel slippery </li></ul><ul><li>Don’t react w/ carbonates  </li></ul>bases
B ases  turn  red  litmus paper   b lue.
b ases <ul><li>form  hydr ox ide  ions in water </li></ul>
hydroxide ion <ul><li>made of oxygen & hydrogen </li></ul>OH -
 
indicator <ul><li>compound that changes color when in contact w/ an acid or base </li></ul><ul><li>ex. litmus paper </li><...
 
Properties of Acids and Bases [02:04]
strengths of acids & bases <ul><li>refers to how well an acid or base separates into ions in water </li></ul>
 
pH scale <ul><li>ranges from 0 – 14 </li></ul><ul><li>pH < 7  acid </li></ul><ul><li>pH = 7  neutral </li></ul><ul><li>pH ...
Universal indicator shows how acidic or alkaline a solution is
neutralization <ul><li>reaction between an acid & base </li></ul><ul><li>produces water & a  salt  </li></ul><ul><li>an io...
Acids and Bases song- Youtube   Acids and Base Alien Juice Bar Interactive Activity BBC Activity
Ch. 3 Sec. 3-4 Acids & Bases <ul><li>A reaction between an acid and a base is a __ reaction. </li></ul><ul><li>The pH of a...
8th Grade Ch. 3 Sec. 3-4 Describing Acids & Bases-Acids and Bases in Solution
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8th Grade Ch. 3 Sec. 3-4 Describing Acids & Bases-Acids and Bases in Solution

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Transcript of "8th Grade Ch. 3 Sec. 3-4 Describing Acids & Bases-Acids and Bases in Solution"

  1. 1. Ch. 3 Sec. 3-4 Acids and Bases
  2. 2. When we think of acids and bases, we tend to think of chemistry lab acids and bases like But we are surrounded by acids and bases in the world. Most of them are weak.
  3. 3. Lemons to be sour Acids cause…
  4. 4. Acids cause… Cavities in your teeth
  5. 6. acids <ul><li>Taste sour </li></ul><ul><li>React w/ metals & carbonates-produce H gas </li></ul>
  6. 7. acids <ul><li>Turn blue litmus paper red </li></ul>
  7. 8. <ul><li>form hydrogen ions (H+) in water </li></ul>acids
  8. 10. corrosive <ul><li>eat away @ other materials </li></ul>
  9. 11. <ul><li>Taste bitter </li></ul><ul><li>Feel slippery </li></ul><ul><li>Don’t react w/ carbonates </li></ul>bases
  10. 12. B ases turn red litmus paper b lue.
  11. 13. b ases <ul><li>form hydr ox ide ions in water </li></ul>
  12. 14. hydroxide ion <ul><li>made of oxygen & hydrogen </li></ul>OH -
  13. 16. indicator <ul><li>compound that changes color when in contact w/ an acid or base </li></ul><ul><li>ex. litmus paper </li></ul>
  14. 18. Properties of Acids and Bases [02:04]
  15. 19. strengths of acids & bases <ul><li>refers to how well an acid or base separates into ions in water </li></ul>
  16. 21. pH scale <ul><li>ranges from 0 – 14 </li></ul><ul><li>pH < 7 acid </li></ul><ul><li>pH = 7 neutral </li></ul><ul><li>pH > 7 base </li></ul>pH Scale song
  17. 22. Universal indicator shows how acidic or alkaline a solution is
  18. 23. neutralization <ul><li>reaction between an acid & base </li></ul><ul><li>produces water & a salt </li></ul><ul><li>an ionic compound </li></ul>
  19. 24. Acids and Bases song- Youtube Acids and Base Alien Juice Bar Interactive Activity BBC Activity
  20. 25. Ch. 3 Sec. 3-4 Acids & Bases Review <ul><li>acid or base? </li></ul><ul><li>tastes sour </li></ul><ul><li>forms hydroxide ions in water </li></ul><ul><li>pH= 8 </li></ul><ul><li>reacts with metals to produce H gas </li></ul><ul><li>feels slippery </li></ul><ul><li>turns red litmus paper blue </li></ul>
  21. 26. Ch. 3 Sec. 3-4 Acids & Bases <ul><li>A reaction between an acid and a base is a __ reaction. </li></ul><ul><li>The pH of a neutral solution is __. </li></ul><ul><li>The products formed when a base reacts with an acid are __ and __. </li></ul><ul><li>The symbol for a hydrogen ion is __ and the symbol for a hydroxide ion is___. </li></ul>

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