Homework Ph Chemistry Worksheet Page 6
ADVERTISEMENT
1
2
3
4
5
6Homework 5
Q1. Shampoos contain different types of chemicals. The three main
types of chemicals, and their uses, are shown in the key below.
SHAMPOO
cleaning chemicals
conditioning chemicals
shining chemicals
(usually laureth
(silicon containing
(usually acids)
sulphates)
compounds)
dissolve grease
stick to hair making it
makes hair surface
feel smooth
smooth and reflects light
a) Why do cleaning chemicals in shampoo remove grease from hair?
b) Shampoos contain chemicals to make the hair shine. Suggest a pH value for
these chemicals.
c) What type of compounds in shampoo would be useful for someone with frizzy
hair?
d) The label shows the ingredients in shampoo:
3 in 1 Shampoo & Conditioner
FOR ALL HAIR TYPES
INGREDIENTS:
Aqua, sodium laureth sulphate,
hydrogenated glyceryl palmate, magnesium laureth sulphate,
methylparben, parfume.
75ml e
e) Identify an ingredient which could be a cleaning chemical.
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education