Unit Test 11/21 (Subatomic and Properties)

Front

What is an Element?

Back

A substance that cannot be broken down into simpler substances by chemical means.

Front

Where are protons located in an atom?

Back

In the nucleus.

Front

What is a Molecule?

Back

The smallest unit of a compound that retains the properties of that compound.

Front

What is Mass?

Back

The amount of matter in an object.

Front

What is the primary difference between a physical change and a chemical change?

Back

Chemical changes produce new substances, while physical changes do not.

Front

What is a Compound?

Back

A substance formed when two or more elements are chemically bonded together.

Front

What is a Mixture?

Back

A combination of two or more substances that are not chemically bonded.

Front

What is Density?

Back

The mass of an object divided by its volume.

Front

What is a Chemical Change?

Back

A change that results in the formation of new chemical substances.

Front

What is a Physical Change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.