The ones that are coordinating conjunctions are "and" and "so".
Coordinating conjunctions are words that are used to join two or more words, phrases, clauses or sentences that can stand alone. In other words, this type of conjunctions connects phrases, clauses or sentences that have the same rank. Besides "and" and "so", there are other coordinating conjunctions: "but", "or", "for", "nor" and "yet". On the other hand, "however" and "therefore" are not coordinating conjunctions: they are adverbs.
