Cosmetology: Chapter 12 Vocabulary
Basics of Chemistry
Terms in this set (54)
A solution that has a pH below 7.0 (neutral)
A solution that has a pH above 7.0 (neutral)
Also known as bases; compounds that react with acids to form salts.
Alkaline substances used to neutralize acids or raise the pH of many hair products.
alpha hydroxy acids
Abbreviated AHAs; acids derived from plants (mostly fruit) that are often used to exfoliate the skin.
Colorless gas with a pungent odor that is composed of hydrogen and nitrogen.
An ion with a negative electrical charge.
The smallest chemical components (often called particles) of an element; structures that make up the element and have the same properties of the element.
An ion with a positive electrical charge.
A change in the chemical composistion or make-up of a substance.
Characteristics that can only be determined by a chemical reaction and a chemical change in the substance.
Science that deals with the composition, structures, and properties of matter, and how matter changes under different conditions.
Rapid oxidation of a substance, accompanied by the production of heat and light.
Also known as compounds; a chemical combination of two or more atoms of different elements in definite (fixed) proportions.
The simplest form of chemical matter; an element cannot be broken downinto a simpler substance without a loss of identity.
Molecule containing two or more atoms of the same element in definite (fixed) proportions.
An ingredient that brings two normally incompatible materials together and binds them into a uniform and fairly stable blend.
An unstable physical mixture to two or more immiscible substances (substances that normally will not stay blended) plus a specal ingredient called an emulsifier.
Chemical reactions that release a significant amount of heat.
Sweet, colorless, oily substance used as a solvent and as a moisturizer in skin and body creams.
Liquids that are not capable of being mixed together to form stable solutions.
The study of substances that do not contain the element carbon, but may contain the element hydrogen.
An atom or molecule that carries an electrical charge.
The separation of an atom or molecule into positive and negative ions.
Having an affinity for or an attraction to fat and oils (oil-loving).
Multiples of ten.
Any substance that occupies space and has mass (weight).
Liquids that are mutually soluble, meaning that they can be mixed together to form stable solutions.
A chemical combination of two or more atoms in definite (fixed) proportions.
Abbreviated O/W emulsion; oil droplets emulsified in water.
The study of substances that contain the element carbon.
A chemical reaction that combines a substance with oxygen to produce an oxide.
Also known as redox; a chemical reaction in which the oxidizing agent is reduced (bu losing oxygen)and the reducing agent is oxidized (by gaining oxygen).
Substance that releases oxygen.
The abbreviation used for potential hydrogen, pH represents the quantity of hydrogen ions.
A measure of the acidity and alkanlinity of a substance; the pH scale has a range of 0 to 14, with 7 being neutral. A pH below 7 is an acidic solution; a pH above 7 is an alkaline solution.
A change in the form or physical properties of a substance, without a chemical reaction or the creation of a new substance.
A physical combination of mater in any proportions.
Characteristics that can be determined without a chemical reaction and that do not cause a chemical change in the substance.
A chemical combination of matter in definite (fixed) proportions.
A substance that adds hydrogen to a chemical compound or subtracts oxygen from the compound.
The process through which oxygen is subtracted from or hydrogen is added to a substance through a chemical reaction.
A chemical reaction in which oxygen is subtracted from or hydrogen is added to a substance.
Special type of oil used in hair conditioners, water-resistant lubricants for the skin, and nail polish dryers.
The substance that is dissolved in a solution.
A stable physical mixture of two or more substances.
The substance that dissolves the solute and makes a solution.
states of matter
The three different physical forms of matter- solid, liquid and gas.
a contraction of surface active agents; substances that allow oil and water to mix, or emulsify.
Unstable physical mixtures of undissolved particles in a liquid.
A colorless liquid or white crystals with a strong unpleasant odor that is used in permanent waving solutions.
Alcohols that evaporate easily.
volatile organic compounds
Abbreviated VOC's; compounds that contain carbon (organic) and evaporate very easily (volatile).
Abbreviated W/O emulsion; water droplets are emulsified in oil.
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