Luckypeanut4748 Luckypeanut4748 29-12-2023 Другие вопросы contestada Which of the following compounds has the same percent composition by mass as styrene, C8H8? 1) acetylene, C₂H₂ 2) benzene, C₆H₆ 3) cyclobutadiene, C4H4 4) a-ethyl naphthalene, C12H12 5) all of these