Ch. 12 Chemistry Flashcards
All hair color products are organic chemicals
True
There are 60 naturally occurring elements, each with its own distinct physical and chemical properties
False
Water and alcohol are examples of miscible liquids
True
The branch of science that applies to substances that contain carbon is called
Organic chemistry
All matter has physical and chemical properties and exists in the form of a
Solid, liquid and gas
The simplest form of chemical matter that cannot be broken down without the loss of identity is a
Element
Elements differ from one another because of the difference in the structure of their
Atoms
Chemically combining two or more atoms produce a
Molecule
The chemical combination of two or more atoms of different elements produces a
Compound
Change in the form of a substance that does not cause a chemical reaction is a
Physical change
Chemical reactions that are characterized by or formed by giving off heat are
Exothermic
A chemical combination of matter in definite(fixed) proportions is a
Pure substance
Air contains many substances, including nitrogen, carbon dioxide, and water vapor, and is an example of a
Physical mixture
A stable physical mixture of two or more substances is a
Solution
A substance, usually liquid, that dissolves another substance to form a solution is a
Solvent
Liquids that can be mixed together to form stable solutions are
Miscible
An unstable physical mixture of two or more immiscible substances is a
Emulsion
Substances that allow oil and water to mix, or emulsify, are:
Surfactants
A solution with a pH value of 7 indicates a:
Neutral solution
Substances used to neutralize acids or raise the pH of many hair products are:
Alkanolamines
An example of an ammonia compound that is used to perform chemical services in a salon is:
Ammonium hydroxide
Ions with a positive electrical charge are considered to be
Cation
A sweet, colorless, oily substance that is used as a moisturizer in skin and body creams is:
Glycerin
A common volatile organic compound used in hair spray is:
Ethyl alcohol
An atom or molecule that carries an electrical charge is an:
Ion
