Chapter 7 Chemistry

When a substance is oxidized, the oxidizer is always reduced.

A pH of eight is ____________ times more alkaline than a pH of seven.

How long should a properly stored emulsion remain stable?

What is the most abundant element found on earth?

Chemical reaction in which the oxidizing agent is reduced and the reducing agent is oxidized.

Suspensions contain smaller particles than solutions do.

What term refers to the simplest form of chemical matter?

What is the general composition of air by volume?

Also known as bases; have a pH above 7.0

Atoms can be divided into simpler substances by ordinary chemical means.

Estheticians work with chemistry every day.

These have a definite size and shape.

What is the most commonly used cosmetic ingredient?

Understanding chemistry helps you to understand how to layer products in services.

How are elements identified?

What is an example of an oil in water emulsion?

Inorganic substances are flammable.

What does ionization create?

A disadvantage of oil-in-water emulsions is that they will not easily rinse away with water.

These have a definite size but not a definite shape.

Rapid oxidation of a substance, accompanied by the production of heat and light.

These are used to emulsify oil and water.

What is a characteristic of suspensions?

Characteristics that can be determined without a chemical reaction, does not change identity of substance.

Unstable mixture of two or more immiscible substances.

The atoms of each element are different in structure from the atoms of all other elements.

A uniform mixture of two or more substances.

Droplets of oil dispersed in water with the aid of an emulsifying agent.

What is an example of an organic substance?

Substances with a pH of below 7.0

It may not be beneficial to the skin for the esthetician to cross over in product lines when providing services.

What is it called when a chemical changes its state but not its composition?

These have neither a definite size or definite shape.

What is an example of a liquid?

Droplets of water dispersed in an oil.

Characteristics determined only with a chemical reaction adn that cause a chemical change in identity of the substance.

What is the range of the pH scale?

What color does a base turn litmus paper?

Combination of two or more substances that are united physically, in any proportions with combined properties.

Most water is pure.