Elements and Compounds

Front

What is a compound?

Back

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

Front

How are compounds represented?

Back

Compounds are represented by a chemical formula, which shows the elements and their proportions.

Front

What is the chemical formula for water?

Back

The chemical formula for water is H2O.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded.

Front

What is the chemical symbol for Oxygen?

Back

The chemical symbol for Oxygen is O.

Front

How many elements are in the compound CHOFeNaNPb?

Back

There are 7 elements in the compound CHOFeNaNPb.

Front

What is the chemical symbol for Silicon?

Back

The chemical symbol for Silicon is Si.

Front

Is CO (carbon monoxide) a compound or an element?

Back

CO is a compound.

Front

What is an example of a compound?

Back

An example of a compound is table salt (NaCl).

Front

What does a chemical formula indicate?

Back

A chemical formula indicates the types and numbers of atoms in a compound.