Ch.7: Basics of Chemistry

Metals,minerals,water,air, and ammonia are examples of ______ substances.

When using a permanent wave neutralizer, _______.

Which of the following is an example of a pure substance?

What color do acids turn blue litmus paper?

Which of the following allows oil and water to mix or emulsify by reducing surface tension?

An example of physical change is _______.

A(n) ______ charged ion is called an anion.

_____ are examples of emulsions used in barbering services.

An example of a water-in-oil emulsion is ______.

What term applies to all living things and those things that were once alive?

_______, also known as alkalis, are compounds of hydrogen, a metal, and oxygen.

Gasoline,synthetic fabrics,plastics, and pesticides are all considered organic because they are manufactured from ____.

An example of a chemical change is _______.

______ refers to either the loss of oxygen or the addition of hydrogen.

The pH scale measures the concentration of hydrogen ions in acidic and alkaline _______ solutions.

Rusting iron and burning wood are examples of a change in what type of properties?

Which of the following is defined as anything that occupies space(volume) and has mass(weight)?

When oxygen is combined with a substance,the substance is _______.

There are 118 different elements known to science today. How many of these are naturally occurring on Earth?

Which of the following are basic building blocks of all matter?

A _____ is a stable, uniform mixture of 2/more mixable substances that is made by dissolving substances

An example of an elemental molecule is _______.

what chemical compound can exist in all three states of matter depending on its temperature?

As the basic unit of matter _______ cannot be divided into simpler substances by ordinary chemical means.

________ is the most common element found in the known universe.

Organic chemistry is the study of substances that contain the element ______.

Oxidation and reduction always occur simultaneously and referred to as a(n) _______ reaction.

What type of chemical reaction requires the absorption of energy/ heat from an external source for the reaction to occur

In hair lightening processes,what substance oxidizes the melanin pigments in hair,leaving the hair a lighter color?

A(n) _____ is a suspension of one liquid dispersed in another.