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Monday, 22 July 2013
BEWARE OF...
FOO ADDITIVES??
FOOD ADDITIVES
are substances added to food to preserve flavor or enhance its taste and appearance.
Examples of food additives:
A few
types of additives
that commonly used in our food:
DO YOU KNOW???
The Cleansing Action of SOAPS & DETERGENT
1. This is the structure of soap & detergent: contains hydrophobic tail & hyrophilic head
Soap has COO- head while detergent has SOOO- head
2. Functions of soap & detergent:
Reduces the surface tension of water
Head dissolves in water & tail dissolves in grease
Rinsing washes away these grease droplets & leave the surface clean.
3. The cleansing action of soap:
These are the steps in order to make our clothes clean...
CHAPTER 5: CHEMICALS FOR CONSUMER
HOW ARE WE DEALING WITH OUR
LAUNDRY
??
HOW ARE WE GONNA CHANGE THESE
DIRTY CLOTHES
TO......
VERY CLEAN CLOTHES
LIKE THESE??
We can make it real....by using
DETERGENT
BUT DO U KNOW WHAT ARE THE DIFFERENCES BETWEEN
SOAP & DETERGENT
??
LETS SEE THE DIFFERENCES....
Chapter 5 chemical 4 consumers
from
leonling
Saturday, 6 July 2013
CHEMISTRY FORM 5 (CHAPTER 4: THERMOCHEMISTRY)
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