Chemistry review

Front

What type of charge does a neutron have?

Back

No charge

Front

What type of charge does an electron have?

Back

Negative

Front

What is density?

Back

Density is the mass of a substance divided by its volume.

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances, such as baking brownies.

Front

Which family on the periodic table is the least reactive?

Back

Noble Gases (Group 18)

Front

What is the charge of a proton?

Back

Positive

Front

What is the atomic number?

Back

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

Front

What is the difference 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 the formula for calculating density?

Back

Density = Mass / Volume

Front

What are the three states of matter?

Back

Solid, Liquid, Gas