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MILADY'S EXAM #3-ESTHETICS QUESTIONS AND ANSWERS
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MILADY'S EXAM #3-ESTHETICS QUESTIONS AND ANSWERS
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MILADY'S EXAM #3-ESTHETICSQUESTIONS AND ANSWERS
The effects of cosmetic products on the skin are based on: - Answer-chemical reactions
Organic substances: - Answer-contain carbon
Matter assumes the shape of a solid, liquid, or gas depending on its: - Answer-
temperature
A form of matter that cannot be broken down into simpler substances is the: - Answer-
element
The smallest part of an element that still retains the properties of that element is call
a/an: - Answer-atom
Water and table salt are types of: - Answer-compounds
When a physical change occurs in a substance: - Answer-there is a change in physical
properties
Physical properties include: - Answer-weight
An example of a physical change is: - Answer-water freezing into ice
The element oxygen: - Answer-is the most abundant element
Hydrogen peroxide is a compound of: - Answer-oxygen and hydrogen
the pH scale measure the: - Answer-acidity and alkalinity of a substance
Alkalis or bases: - Answer-have a pH above 7.0
Sebum and sweat on the skin create a barrier on the surface called the: - Answer-acid
mantle
When equal amounts of acids and alkalis are mixed together, they: - Answer-neutralize
each other
When oxygen is removed from a substance, the chemical reaction is called: - Answer-
reduction
In redox reactions, the two chemical process that take place simultaneously are: -
Answer-oxidation and reduction
, A usually liquid substance that dissolves another substance is called a: - Answer-
solvent
Immiscible liquids: - Answer-cannot be mixed together
Calamine lotion is a type of: - Answer-suspension
An emulsion: - Answer-has larger particles than solutions and suspensions do
The head of a surfactant molecule is: - Answer-hydrophilic
Oil-in-water emulsions: - Answer-contain more water than oil
Surfactants are an ingredient in: - Answer-emulsions
Performance ingredients - Answer-cause changes in the skin's appearance
A class of performance ingredients that exfoliate the corneum is: - Answer-alphahydroxy
acids
Water is both a performance ingredient and a/an: - Answer-vehicle
The cosmetic ingredient called emollients: - Answer-lie on top of the skin
Most skin care products are a mixture of: - Answer-oil and water
Emollients moisturize the skin in a process called: - Answer-occlusion
Oils from plant sources: - Answer-mimic human sebum
A product that is "biologically inert": - Answer-does not react with chemicals involved in
skin function
Plant oils and animal fats are the source of: - Answer-fatty acids
Emollient products whose names almost always end in -ate are: - Answer-fatty esters
Silicone products: - Answer-allow oxygen in and out of the follicles
Emollients that are comedogenic tend to: - Answer-block pores
Detergents are used in skin care products because they: - Answer-reduce the surface
tension of dirt and oils
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