Matter Review

Front

What is a heterogeneous mixture?

Back

A mixture where the different parts can be seen and are not uniformly distributed.

Front

What particles make up the nucleus of an atom?

Back

Protons and neutrons.

Front

What is a homogeneous mixture?

Back

A mixture that is so well mixed that it appears to be one substance.

Front

Define a compound in terms of atomic structure.

Back

A compound is always made up of two or more different types of atoms chemically bonded together.

Front

What does the atomic number of an atom represent?

Back

The atomic number represents the number of protons in the nucleus of an atom.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded.

Front

What is the definition of matter?

Back

Matter is anything that has mass and takes up space.

Front

What are the three states of matter?

Back

Solid, liquid, and gas.

Front

How do you differentiate between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is an example of a physical change?

Back

Melting ice is an example of a physical change.