Chemical formula

Organic or inorganic?

The name ‘organic’ was given by early chemists who divided chemical compounds into two groups.


Organic - living	Inorganic - non living

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Raining vinegar

In some places in world the rain water has become so polluted with chemicals that it is like vinegar. This type of rain is called acid rain.

Pure water is neutral and has a pH of 7.

Natural rain water is slightly acidic mainly because of dissolved CO₂which produces carbonic acid or H₂CO₃

H₂O(l) + CO₂(g) <==> H₂CO₃(aq)

The pH of unpolluted rainwater ranges from pH 5 to 6.

Acid rain is rain water with a pH of less than 5.

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The chemical formula of hydrogen peroxide is H₂O₂ which looks similar to water. Its properties however, are completely different. Hydrogen peroxide is commonly used as an antiseptic and to lighten or bleach hair.

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Chemical formula

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Organic chemistry

Organic or inorganic?

Acid rain

Raining vinegar

Hydrogen peroxide

How hydrogen peroxide sunk a nuclear submarine

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