Chapter 6 - Chemistry & Chemical Safety
What Is the average pH for hair and skin?
5
There are 118 different elements known to science today. How many of these are naturally occurring on earth?
98
Which of the following are the basic building blocks of all matter?
Atoms
The letter H stands for the element ________.
Hydrogen
The tail of a surfactant molecule is _________, or oil loving
Lipophilic
The tail of a surfactant molecule is __________, or oil loving.
Lipophilic
Which of the following is defined as anything that occupies space (volume) and has mass (weight)?
Matter
An example of a water-in-oil emulsion is?
Mayonnaise
The letters pH denote ______, which is the relative degree of acidity or alkalinity of a substance
Potential Hydrogen
_____________ are examples of emulsions used in beauty services
Shampoos and conditioners
A __________ is a stable, uniform mixture of two or more mixable substances that is made by dissolving a solid, liquid, or gaseous substance in another substance.
Solution
A _______________ is a stable, uniform mixture of two or more mixa le substances that is made by dissolving a solid, liquid, or gaseous substance in another substance.
Solution
Which of the following allows oil and water to mix or emulsify by reducing surface tension?
Surfactant
An example of an elemental molecule is?
The oxygen in the air
What does a pH below 7 indicate?
an acidic solution
What does pH below 7 indicate
an acidic solution
an example of a water-in-oil emulsion is
mayonnaise
Nonaqueous solutions, such as alcohol or oil, do not have _____
pH
The letters pH denote _____________ which his the relative degree of acidity or alkalinity of a substance
potential hydrogen
Acidic solutions tend to _______ the hair
relax
______ are examples of emulsions used in beauty services
shampoos and conditioners
which of the following allows oil and water to mix or emulsify by reducing surface tension?
surfactant
Nail polish, with glitter that can separate from the polish, is an example of a(n)
suspension
The pH scale measures the concentration of hydrogen ions in acidic and alkaline ________ solutions
water-based
The pH scale measures the concentration of hydrogen ions in acidic and alkaline __________ solutions
water-based