化學 高中 約3年以前

第四題在講什麼😅

(A) 5.79 (B) 8.21 (C) 8.87 (D) 5.13 (E) 9.23 4. Compounds X and Y have the same mass, but compound Y has two more atoms in its structure. Which statements must be true? (A) C, for compound X is greater than C, for Y (B) C, for compound X is less than C, for Y (C) Cp for compound X is greater than Cp for Y (D) Cp for compound X is less than Cp for Y (E) B and D 5. Which of the following gases is/are present in the fuel obtained after coal gasification?

化學 高中 約3年以前

這題，下面的解答看不懂

2-39 1,3-Cyclobutadiene is a rectangular molecule with two shorter double bonds and two longer single bonds. Why do the following structures not represent resonance forms? 一 2.39 The two structures are not resonance forms because the positions of the carbon atoms are different in the two forms.

化學 高中 5年以上以前

請問這題的B為什麼不能選？ 答案A

人 2 人 則 If you are interested in reading English novels, you can visit the city library, Where many eat novels are avallable. (A) readily (B) presently (0 thoroughly 加讓讓遇 全 謾 品汪 Wu 0 Yirtually