F. Ch.6 Chemistry and Chemical Safety

What are unstable physical mixtures of undissolved particles?

Everything above 7 on the pH scale is considered neutral.

How many elements out of 118, occur naturally on earth?

Molecules are two atoms, chemically joined.

Any substance that occupies space and has mass defines what?

What are substances that allow oil and water to mix or emulsify?

A solvent dissolves a solute. IE: water dissolves salt.

What charge does a proton have?

Water is considered a universal solvent.

A physical combination of matter in any proportions is what?

Organic products include

The pH scale is used to measure what?

What is a substance that is dissolved by another substance called?

What charge does an electron have?

A mixture of two or more substances united with the aid of a binder is called?

Two or more atoms of different elements combined chemically are called what?

An atom is the ______ part of an element

How many elements are known today?

Products with a pH below 7 are considered?

Products that have a pH above 7 is considered?

A substance that causes or is believed to cause cancer is carcinogenic

When an acid and alkali are mixed together the chemical reaction is called what?

What charge does a neutron have?

The simplest form of chemical matter and can not be broken down into a simpler substance without loss of identity is?

Inorganic chemistry is the study of substances that include Carbon.

Acids change litmus paper from blue to red.

Only products that contain water can have a pH.

A compound chemical contains one single atom.

Two or more atoms of the same element combined chemically are called what?

Alkaline products will turn litmus paper blue.

What is a miscible liquid?

A change in the form or physical properties without a chemical reaction or creation of a new substance is?

Ammonium thioglycolate raises the pH of hair.

Immiscible liquids are incapable of being mixed into a stable solution.

Everything below 7 on the pH scale is considered?

What is a stable uniform mixture of two or more substances?

What is the average pH of skin?

Pure water has a pH of 7 and is considered what?

Properties that can be determined without a chemical reaction and do not involve a chemical change in the substance?

Color, solubility, odor, density, melting point, boiling point, hardness are all examples of what?

Everything you can touch and everything you can see is matter except…

The separation of an atom or molecule into positive or negative ions is called ionization.

The science that deals with the composition, structures, and properties of matter is called what?