Please choose the correct answer to the question: When Chemical X is added to a certain liquid, the chemical breaks into Substances Y and Z. It is not possible to break Substances Y and Z into simpler particles. Which statement is best supported by this evidence?

Answer1: Chemical X is an element. Answer2: Chemical X is soluble in water. Answer3: Substances Y and Z are elements. Answer4: Substances Y and Z are compounds.

Answer format: answer1/answer2/answer3/answer4