Indicating "not" in phrases taken from Latin and some other languages, non can be a separate word and isn't hyphenated: non compos mentis, persona non grata. When ought to the prefix "non" be followed by a hyphen? Which can be accurate: "a non-polar molecule" or "a nonpolar molecule"? You could https://baumwolltaschen21975.wikipublicity.com/5339961/the_2_minute_rule_for_taschen