Chemistry 1st Semester Review

Front

What are the three subatomic particles of an atom?

Back

Protons, Neutrons, Electrons.

Front

What is a mixture?

Back

A mixture has different types of matter which retain their properties.

Front

What are the positive particles of an atom called?

Back

Protons.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances.

Front

What is the process called when a liquid becomes a gas?

Back

Evaporation.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the charge of a neutron?

Back

Neutral.

Front

What is a compound?

Back

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

Front

What is the difference between a pure substance and a mixture?

Back

A pure substance has a uniform and definite composition, while a mixture contains two or more substances that retain their individual properties.