砂糖と塩を間違えるな。

sugar

if; when; and; with; particle used for quoting (with speech, thoughts, etc.); quoting particle; promoted pawn; indicates question (sentence end)

salt (i.e. sodium chloride); common salt; table salt; salt (e.g. sodium chloride, calcium sulfate, etc.); hardship; toil; trouble; saltiness

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

to make a mistake (in); to commit an error (e.g. in calculation); to confuse; to mistake something for something else

(sentence end, mainly masc.) indicates emotion or emphasis; (used with masu stem verb) command; (used with dictionary form verb) prohibition