chemically treated nanostructured powder Should I hyphenate chemically-treated? I really don't know cause I googled it and couldn't find it hyphenated. I think that according to the rules it should be, but I am not a native speaker and maybe I am missing something.
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From The Chicago Manual of Style (17th ed), 7.86:
Compounds formed by an adverb ending in ly plus an adjective or participle (such as largely irrelevant or smartly dressed) are not hyphenated either before or after a noun, since ambiguity is virtually impossible. (The ly ending with adverbs signals to the reader that the next word will be another modifier, not a noun.)' (@Jason Bassford)
– Edwin Ashworth Jun 06 '20 at 15:53