Elements and Compounds

Front

What is the chemical symbol for Oxygen?

Back

O

Front

What are the two most common elements found in the oceans?

Back

Oxygen and Hydrogen

Front

How many different elements are represented in the compound CH₄?

Back

2

Front

What is the chemical formula for Salt?

Back

NaCl

Front

Is NaCl a compound or an element?

Back

Compound

Front

What is an element?

Back

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

Front

What is a compound?

Back

A substance formed when two or more elements chemically bond together.

Front

Give an example of a compound.

Back

Water (H₂O) is a compound made of Hydrogen and Oxygen.

Front

What is the difference between an element and a compound?

Back

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

Front

What is the chemical symbol for Sodium?

Back

Na