Ch. 6 Chemistry

Multiple Choice

Which of the following is TRUE of creams, lotions, masks, and makeup?

• They never contain chemicals.

• They only contain chemicals if they are not made from natural sources such as plant extracts.

• They only contain chemicals if they come from ingredients manufactured in a laboratory.

• They contain chemicals whether they come from natural sources or from ingredients manufactured in a laboratory.

Multiple Choice

Any substance that occupies space and has weight is ______.

• a chemical

• matter

• potentially dangerous

• a beauty product

Multiple Choice

How many elements are known to science today?

• 118

• 108

• 81

• 18

Multiple Choice

_______ are the basic units of matter.

• Electrons

• Neutrons

• Protons

• Atoms

Multiple Choice

Which of the following is an example of a compound molecule?

• the oxygen we breathe

• the ozone layer

• common table salt

• pure nitrogen

Multiple Choice

Jonathan, a licensed professional with his own business, is driving to the store to buy two dozen large bags of ice. Much of the rehabilitative work he and his employees do for clients relies on ice, and because someone left the freezer door open all night, their entire stockpile of ice is now water. Which of the following happened to the ice when it melted?

• an immiscible reation

• a chemcial reaction

• a physical change

• a chemical change

Multiple Choice

Which of the following is an example of a chemical change?

• ice melting to become water

• water evaporating into the air

• exposed metal rusting

• liquid nail polish hardening

Multiple Choice

Chloe is making a scented mist to use on her clients following their services. Which of the following is TRUE of the drops of lavender extract she is mixing into the water?

• They are solvents.

• They are solutes.

• They are solutions.

• They are immiscible.

Multiple Choice

Jennifer is using a new soothing oil on her clients during services. The problem Jennifer is running into, however, is that when the mixture is left to sit for more than five minuets, its components separate. Which of the following could Jennifer add to her mixture to solve this problem?

• an emulsifier

• a solvent

• a solute

• a suspension

Multiple Choice

Which of the following were the first surfactants?

• motor oils

• cooking oils

• soaps

• nail polishes

Multiple Choice

The overexposure principle is used to describe how overexposure determines _________.

• tolerance

• toxicity

• safety

• immunity

Multiple Choice

Why is understanding pH important for the beauty and wellness professional?

• Because it is essential for passing all exams.

• Because employers require it.

• Because it affects the hair, skin, and nails.

• Because it is directly related to income potential.

Multiple Choice

The pH scale is used to measure _______.

• acidity and alkalinity

• overexposure and underexposure

• levels of carbon dioxide

• levels of oxygen

Multiple Choice

Harriet's client Rafael has requested that Harriet use a solution that is neutral to his skin. Which of the following should Harriet be using on Rafael's skin?

• a pH of 0

• a pH of 5

• a pH of 7

• a pH of 14

Multiple Choice

For which of the following purposes would acids most likely be used?

• to raise the pH of products

• to swell the hair

• to exfoliate the skin

• to soften calloused skin

Multiple Choice

Daria's boss has instructed her to create a variety of products and mixtures. The one thing her boss insisted upon was that each have a  measurable pH. Which of the following must Daria include in all of her mixtures and products?

• water

• salt

• nitrogen

• oil

Multiple Choice

What does an oxidizing agent do?

• absorbs oxygen

• releases oxygen

• increases oxygen

• nullifies oxygen

Multiple Choice

If you were to leave the freezer open all night, all of the ice will melt. This is a result of ________.

• an endothermic reaction

• an exothermic reaction

• neutralization

• ionization

Multiple Choice

Why is Maggie MOST LIKELY confident she'll be made aware of any hazards associated with the products she works with and sells in her businesses?

• Because she graduated from beauty school.

• Because the products all have labels.

• Because the products are registered with the EPA.

• Because none of the products contain chemicals.

Multiple Choice

Which of the following is TRUE of products that are incompatible? 

• No two should be stored next to each other.

• They can be safely mixed with proper precautions.

• They should never be used on clients.

• They are always considered dangerous.

Multiple Choice

Which of the following is TRUE today of the disposal of many of the chemicals used in salons, spas, and barbershops?

• There are no regulations in place anywhere in the United States.

• Most states and counties do not have regulations in place.

• Most states and counties have regulations in place.

• There are strict and universal regulations in place across the United States.

Multiple Choice

SDS are designed for:

• use in an emergency

• use only by new employees

• use only by managers

• everyday use

Multiple Choice

In the uniform order of the SDS, which of the following comes immediately after the first category of "Identification"?

• Hazard Identification

• First-Aid Measures

• Toxicology Information

• Disposal Considerations

Multiple Choice

An SDS is formatted into _____ categories

• 16

• 12

• 10

• 8

Multiple Choice

Which of the following BEST describes a carcinogen?

• a substance that causes cancer

• a substance made of carbon

• a material capable of igniting or burning

• a material that is very easy to ignite