Transcript How to solve the food waste problem

Acid, Base and
Neutralization
reactions
Kihwa Kim
What is an acid?
- Taste : Sour
- When an acid is dissolved in water?
it releases hydrogen ions : H+
- Conducts electricity or not
What is a base?
- Taste : Bitter
- When an base is dissolved in water?
it releases hydroxide ions : OH- Conducts electricity or not
- If you touch it : feel slippery
Neutralization
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A reaction between acid and base
Hydrogen ions combine with
Hydroxide ions to produce water
H+ + OH- → H2O
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Products are water and salt
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Fermented Kimchi is sour.
Acid
Squaty potty for manure
Base
When raw fish starts to smell funny
(base), you want to squeeze lemon on it
Neutralization
reaction
The great combination of three food
Neutralization
reaction
Let’s make a colorful Korean name card
with various indicators and solutions
Time to show off
Questions?
Survey please