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Chapter 12- Basics of Chemistry
Milady textbook
58
Cosmetology
Not Applicable
01/06/2016

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Term
Chemistry
Definition
science that deals with the composition,structures, and properties of matter and how matter changes under different condition.
Term
Organic Chemistry
Definition
study of substances that contain the elements carbon.
Term
Inorganic Chemistry
Definition
Study of substances that don't contain the element carbon.
Term
Matter
Definition
any substance that occupies space and has mass (weight)
Term
Energy doesn't occupy
Definition
space or have mass
Term
element
Definition
simplest form of chemical matter
Term
how many naturally occurring elements are there?
Definition
90
Term
atoms
Definition
smallest chemical component of an element
Term
molecule
Definition
chemical combination of two or more atoms in definite proportions.
Term
elemental molecule
Definition
molecule containing two or more atoms of the same element in definite proportions
Term
compound molecule (compounds)
Definition
chemical combination of two or more atoms of different elements in definite proportions.
Term
all matter exists in one of three different physical forms:
Definition
solid,liquid,gas
Term
Solid,liquid, and gas are called:
Definition
states of matter
Term
Physical properties
Definition
characteristics that can be determined w/o a chemical reaction and that don't involve a chemical change in the substance
Term
Physical properties include:
Definition
color,size,weight,hardness, and glossiness
Term
Chemical properties
Definition
characteristics that can only be determined by a chemical reaction and a chemical change in substance.
Term
Physical change
Definition
a change in the form or physical properties of a substance, w/o a chemical reaction or the creation of a new substance.
Term
ex. of phys. change:
Definition
1. when temporary hair color is applied to hair, 2. nail polish is taken off the mail without a remover solvent.
Term
chemical change
Definition
a change in the chemical composition or make-up of a substance
Term
ex. of chemical change:
Definition
1.oxidation of hair color,2.wood turning to charcoal after it has burned.
Term
Redox (oxidation-reduction)
Definition
chemical reaction in which the oxidation agent is reduced and the reducing agent is oxidized
Term
Oxidizing agent
Definition
substance that releases oxygen
Term
Reducing agent
Definition
substance that adds hydrogen to a chemical compound or subtracts oxygen from the compound
Term
Reduction
Definition
process through which oxygen is subtracted from or hydrogen is added to a substance through a chemical reaction
Term
exothermic reactions
Definition
chemical reactions that release a significant amount of heart
Term
combustion
Definition
rapid oxidation of a substance, accompanied by the productions of heat and light
Term
pure substance
Definition
chemical combination of matter in definite proportions
Term
solution
Definition
stable physical mixture of two or more substances
Term
solute
Definition
substance that is dissolved into solution
Term
solvent
Definition
substance that dissolves the solute and makes the solution
Term
miscible
Definition
liquids are mutually soluble,meaning that they can be mixed together to form stable solution
Term
immiscible
Definition
liquids are not capable of being mixed together to form stable solutions
Term
suspension
Definition
unstable physical mixtures of undissolved particles in a liquid
Term
emulsion
Definition
unstable physical mixture of two or more immiscible substances plus an emulsifier.
Term
emulsifier
Definition
an ingredient that brings two normally incompatible materials together and binds them into a uniform and fairly stable blend
Term
hydrophilic
Definition
water-loving
Term
lipophilic
Definition
oil-loving
Term
oil-in-water
Definition
emulsion oil droplets are emulsified in water
Term
water-in-oil
Definition
water droplets are emulsified in oil
Term
Volatile alcohols
Definition
those that evaporate easily (isopropyl alcohol)
Term
Alkanolamines
Definition
alkaline substances used to neautralize acids or raise pH of many hair products
Term
Ammonia
Definition
colorless gas with a pungent odor that is composed of hydrogen and nitrogen
Term
Glycerin
Definition
sweet,colorless,oily substance
Term
Silicones
Definition
special type of oil used in har conditioners,water-resistant lubricants for the skin, and nail polish dryers.
Term
Volatile organic compounds
Definition
compounds that contain carbon (organic) and evaporate easily(volatile)
Term
pH
Definition
potential hydrogen
Term
ion
Definition
atom or molecule that carries an electric charge
Term
ionization
Definition
separation of an atom or molecule into positive and negative ions
Term
anion
Definition
a ion with a negative electric charge
Term
cation
Definition
ion with a positive electrical charge
Term
pH scale
Definition
0-14: measure of acidity to alkalinity
Term
acidic solution
Definition
below 7
Term
neutral solution
Definition
at 7
Term
alkaline solution
Definition
above 7
Term
logarithm
Definition
multiples of 10
Term
alpha hydroxy acids (AHAs)
Definition
derived from plants, are a exmaples of acids often used in salons to exfoliate the skin and to help adjust the pH of a lotion or cream
Term
thioglycolic acid
Definition
colorless liquid or white crystals with a strong unpleasant odor thats used in a permanent waving solution
Term
alkalis (bases)
Definition
owe their chemical reactivity to the hydroxide ion
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