Chemistry - acids and alkalis

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Acids and alkalis

acids and alkalis are two groups of chemicals.We can test them using an Indicator. eg universal indicator. This shows if it's an acid or an alkalis

Acid: red/orange/yellow= ph 1 - 6

Neutral: green = ph 7

Alkalis: blues/purples= ph 8 - 14

Acid rain

Acid rain is formed when sulphar dioxide dissolves in rain water which makes it acidic. Nitrogen oxides can also form acid rain. 

The best way acid rain can be reduced


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