What is the chemical formula of sulphur trioxide?

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What is the chemical formula of sulphur trioxide?

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Answer 1 · 2017-01-27T17:09:27

Sulfur trioxide - $S O_{3}$ $SO_"3"$ .

Explanation:

Sulfur trioxide: $S O_{3}$ $SO_"3"$ .

How I came to this conclusion:

I noticed that the compound consists of non-metals, therefore it must be a covalent compound - meaning I use prefixes for compounds.

Sulfur is $S$ $S$ . Simple enough. Trioxide has the prefix of tri, meaning "3". Therefore there is 3 atoms of oxygen. Combine them and I get $S O_{3}$ $SO_"3"$ .

Don't be confused with sulfite: ${(S O_{3})}_{3}^{2 -}$ $(SO_"3")^(2-)$ and sulfate: ${(S O_{4})}_{4}^{2 -}$ $(SO_"4")^(2-)$

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What is the chemical formula of sulphur trioxide?

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