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When the anion name ends in -ite, the acid name is the stem of the anion with the suffix -ous, followed by the word acid.

-ite being the noun form of the compound

-ous being the adjective form of the compound

The form -ous can be used in such a case of the compound sulfite.

For Example

Anion Name Example Acid Name Example

-ite sulfite (stem)-ous acid sulfurous acid

When you name the compound as an acid you add the suffix -ous, and take away the suffix -ite

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15y ago

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