51) Which of the following formulas could be an empirical formula? A) C4H04 B) C&H1208 C) CsH5Os D) C2H302 52) Which of the following statements is true about carbon dioxide? A) It cannot be represented by an empirical formula. B) It cannot be represented by a molecular formula. C) It cannot be represented by a structural formula. D) It can only be represented by a molecular formula. E) Its molecular and empirical formulas are identical.