What is the difference between an express and an implied contract?A unilateral and a bilateral contract?A contract that is void or voidable?What elements must be in place for formation of a contract?What are three examples of valid consideration?>The Uniform Commercial Code generally regulates commerce or trade on a national basis. Does the UCC directly or indirectly have any effect on international commerce? If so, what effect on international or worldwide commerce might the UCC cause?