Science Park main page

Science Park

science park

Table of Elements

Chemical information

Science dictionary

scientific data

Site map

Gifts and souvenirs

printable version

Learning Zone home page

Table of Contents Atomic Symbols
Checkpoint 1
Chemical Formula
Covalent 1
Covalent 2
Ionic 1
Ionic 2
Checkpoint 2

Education Billboard - meet and serve your education needs

chemistry calculations

moon phases

Learning Zone - Chemical Symbols and Formula

checkpoint 2 Summary back to lzone home

So far you only learn how to write chemical formula for ONE molecule. How do you describe two molecules? For instance, the chemical formula for two sodium hydroxide molecules is written as

two sodium hydrogen formula

This means there are two sodium, two oxygen and two hydrogen. This is NOT two sodium, one oxygen and one hydrogen atom.

Below shows the summary of the chemical notation, using aluminium sulfate as an example (this example indicate two aluminium sulfate).

summary of chemical symbol notation

End of lesson

Checkpoint 2 LZone home


| Copyright | Privacy | Disclaimer | Contact |

2004-2010, all rights reserved.