Chemistry Test Review Gr. 7

Front

Anything that occupies space and has mass is known as _______________.

Back

Matter

Front

What are the basic components of MATTER?

Back

Atoms

Front

What are the positively charged particles in an atom?

Back

Protons

Front

What charge do electrons have?

Back

Negative

Front

What is the atomic number of Potassium?

Back

19

Front

A(n) ____________________ is a pure substance made of a single type of atom and cannot be broken down.

Back

Element

Front

A molecule is formed when two or more ____________ join chemically.

Back

Atoms

Front

A substance composed of atoms of two or more different elements bonded by chemical bonds

Back

Compound

Front

Which of the chemical equations in the image best supports the Law of Conservation of Matter?

Back

A

Front

How many sodium (Na) atoms are there in a molecule of sodium bicarbonate?

Back

1