Chapter 7: Chemistry

Atoms are ______

What is formed when two or more atoms combine Chemically in definite proportions

Pure water has a(n) _______ pH.

_______ properties include melting and boiling points

___________ is a colorless gas composed of hydrogen and nitrogen.

What conditioners are known as rinse-out conditioners

A(n) ________ cannot be broken into a simpler substance without a loss of identity.

________ are usually water - based emulsions .

A hydrogen peroxide solution is used as a bleaching agent for the hair in solutions of _____ volume.

Chemical reactions that release _____ are called exothermic

As steam , _____ is in a gaslike state

__________ is an example of a compound molecule

_________ Chemistry is the study of substances that contain the element carbon

A(n) ______ is a compound of any element combined with oxygen

The pH of hair and skin is an average of ______?

__________ have a pH above 7.0 and soften and swell the hair .

Percentage of human body that is composed of ______ is 65 percent

A _______ is any substance that is dissolved into a solvent to form a solution.

Soft water comes from _______ or chemically treated water.

Oil loving tail of a surfactant molecule is called

________ remove superfluous hair by dissolving it at the skin line

_______ Chemistry does not contain carbon but may contain hydrogen

In the chemical reaction called _____, an element or compound combines with oxygen to produce an oxide.

Hard water may be softened by _______, water - softening units, or by adding sodium carbonate.

An atom or molecule that ______ is called an ion

Minerals are _______ substances

Only _____ solutions have pH.

___________ Occupies space, & has mass

The pH scale is a _______ scale

_________ are a special type of oil that does not cause comedones.

The ingredients in moisturizing creams _____ is called a humectant.

In which state does matter have volume but no definite shape

Chemical compounds are classified as acids, salts, _____ , and bases

What Conditioners are designed for use with thermal tools

Compound molecules are chemical combinations of _____ of different elements

Substances that are _____ are easy to mix together.

_______ are referred to as a redox reaction.

Chemical changes in the hair can be created with _____ because the chemical reaction of oxidation takes place.

Dissolving a ________ substance in another substance produces a solution.

The mixture called ____ are not usually transparent.

________ is used in the manufacturing of cosmetics is/are processed by distilling

Solutions with a pH _______ contract and harden the hair .

An example of an emulsion is _____.