Chapter 7: Basics of Chemistry

_______ is an example of an emulsion.

• Alcohol

• Hair Oil Tonic

• Witch Hazel

• Shampoo

_________ is an example of an inorganic substance.

• Metal

• Synthetic Fabric

• Gasoline

• Plastic

There are 118 different elements known to science today. How many of these are naturally occurring on Earth?

• 116

• 98

• 50

• 76

A(n) ________ is a suspension of one liquid dispersed in another.

• Emulsion

• Surfactant

• Solution

• Solvent

The four classifications of compounds are acids, bases, salts, and _________.

• Mixtures

• Oxides

• Substances

• Alkalis

When using a permanent wave neutralizer, ___________.

• H2O2 loses oxygen

• The waving solution is oxidized

• Haircolor gains oxygen from H2O2

• Hair is oxidized by removing hydrogen

Which of the following remove hair by pulling it out of the follicle?

• Packs

• Masks

• Epilators

• Depilatories

What common cationic ingredient is used in dandruff shampoos?

• Cocamide

• Ampoteric I-20

• Quaternary Ammonium Compounds

• Sodium Laureth Sulfate

Rusting iron and burning wood are examples of a change in what type of properties?

• Chemical

• Physical

• Mechanical

• Electrical

The pH range of hair and skin is __________.

• 3.5 to 4.5

• 4.5 to 5.5

• 4.5 to 6.5

• 5.5 to 6.5