F. Ch.6 Chemistry and Chemical Safety

Products that have a pH above 7 is considered?

Chemical properties can be determined only by a chemical reaction and involve a chemical change in the substance.

Any substance that occupies space and has mass defines what?

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

Products that should not be mixed or stored near each other are called what?

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

A physical combination of matter in any proportions is what?

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

Products with a pH below 7 are considered?

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

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

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

What charge does a neutron have?

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

Mutually soluble liquids that can be mixed together together are called?

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

The pH scale is used to measure what?

A change in the chemical composition of a substance, with a chemical reaction that creates a new chemical substance is?

What charge does an electron have?

Only products that contain water can have a pH.

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

What are unstable physical mixtures of undissolved particles?

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

How many elements are known today?

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

What charge does a proton have?

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

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

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

What is the average pH of skin?

Water is considered a universal substance.

The structures that make up the element and have the same properties of the element are called what?

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

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

What is a substance that dissolves another substance called?

Which of the following purposes would acids most likely be used for?

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