Compounds & Counting Atoms Review

Front

What is H₂SO₄?

Back

A compound consisting of hydrogen, sulfur, and oxygen.

Front

What two particles make up the nucleus of an atom?

Back

Protons and neutrons.

Front

What is the ratio of sodium atoms to chlorine atoms in NaCl?

Back

1:1

Front

What is the ratio of potassium atoms to oxygen atoms in K₂O?

Back

2:1

Front

What is a compound?

Back

A substance that contains two or more atoms combined.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances.

Front

What are mixtures?

Back

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

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

What is the difference between an element and a compound?

Back

An element is a single type of atom, while a compound is made of two or more different types of atoms.