PerfectIt checks if a set of chemical symbols and SI units appear with/without subscript or superscript.

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By default, PerfectIt checks if a set of common chemical symbols use subscript, and if some common SI units use superscript. It does not check all chemical symbols or SI units. However, you can add additional terms and choose whether those should be checked for consistency, superscript or subscript.

The Superscript/Subscript tab in the style sheet editor is shown below:


PerfectIt will find if the phrase ‘H20’ appears. If it does, it will suggest ‘H20’.