Chemistry

The term used to identify anything that occupies space is called:

• a gas

• matter

• a solid

• organic

Which of the following is NOT an example of a physical change?

• rusting of a nail

• performing a haircut

• shattering a piece of glass

• performing a thermal style

Melting ice changes water from a solid to a liquid. Boiling water changes water from a liquid to a gas. These are examples of what type of change?

• physical

• chemical

• elemental

• molecular

Atoms make up elements. Elements make up matter. Therefore all matter is comprised of :

• gases

• atoms

• carbon

• compounds

All matter that is living or once was living contains carbon and deals with:

• physics

• anatomy

• organic chemistry

• inorganic chemistry

Basic substances that cannot be broken down into simpler substances are called:

• solids

• elements

• molecules

• compounds

Atoms that are the same form a(n):

• mixture

• element

• emulsion

• compound

Two or more of the same atoms joined together by a chemical bond is a(n):

• protein

• neutron

• electron

• molecule

When two hydrogen atoms combine with one oxygen atom, the result is water, which is called a(n):

• atom

• mixture

• element

• compound

Carbon, nitrogen, oxygen and hydrogen form the basis of :

• mixtures

• elements

• compounds

• amino acids