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Second
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Fourth
Fifth
100
organic chemistry
What is the branch of science that applies to substances that contain carbon.
100
Molecule
What is produced when you chemically join two or more atoms?
100
Physical mixture
What is a combination of two or more substances that are physically blended but not chemically joined?
100
Surfactants
What are substances that act as a bridge to allow oil and water to mix?
100
Glycerin
What is a sweet, colorless, oily substance that is used as a moisturizer in skin and body cream?
200
Matter
What is any substance that occupies space.
200
Table salt
What is the chemical compound sodium chloride?
200
Miscible
What is a liquid that can be mixed with another liquid without separating easily?
200
Emulsion
What is a stable suspension of one liquid or solid in another liquid united with the aid of a binder?
200
Ethyl alcohol
What is a common volatile organic compound that evaporates quickly and is used in hair spray?
300
Element
What is the simplest form of matter that cannot be broken down without the loss of identity.
300
Compound
What is the chemical combination of two or more atoms of different elements?
300
Solution
What is a blended mixture of two or more liquids?
300
Hydrophilic
What is the head of a surfactant molecule?
300
Base
What is another term that is used interchangeably to describe an alkali?
400
90
What is the number of naturally occurring elements.
400
Physical change
What is a change in the form of a substance that does not cause a chemical change?
400
Solvent
What is a substance, usually liquid, that dissolves another substance to form a solution?
400
Alkanolamines
What are substances used to neutralize acids and raise the pH of many hair products?
400
Neutral solution
What is a solution with a pH value of 7?
500
The number of atoms they contain.
What is the difference between one element and another.
500
Pure substance
What is matter that has a fixed chemical composition and distinct properties?
500
Immiscible
What is a liquid that is not capable of being mixed with another liquid to form a stable solution?
500
Ammonium hydroxide
What is an example of an ammonia compound that is used to raise the pH of hair?
500
Exothermic
What is a chemical reaction that is characterized by or formed by giving off heat?