16. Which of the following compounds will be more soluble in an acidic solution than in pure water?
(A) Ca₃(PO₄)₂
(B) NH₄Cl
(C) FeBr₃
(D) CuS
(E) Sr(OH)₂

17. Choose all correct descriptions of orbital hybridization. (A) A hybrid orbital is a special type of molecular orbital. (B) For the same atom, the energy of a sp hybrid orbital is lower than that of a sp2 hybrid orbital. (C) The sulfur atom in SF4 is sp3d-hybridized. (D) The central atoms of ClF4+ and PF5 have the same hybridization type. (E) The central atoms of CO2 and SO2 have the same hybridization type.

18. For a chemical reaction that has reached equilibrium, which statements are correct? (A) The concentrations of reactants and products do not change with time. (B) More products can be formed by increasing the temperature. (C) The reaction quotient equals the equilibrium constant K. (D) The Gibbs free energy change ΔG = 0. (E) The forward reaction rate and the reverse reaction rate are the same.

19. Using valence bond theory, which following statements correctly describe bonding in the nitrate ion (NO₃⁻)? (A) There exist multiple resonance structures. (B) Resonance structures transform rapidly between each other. (C) The nitrogen atom is sp² hybridized. (D) Among all three N-O bonds, one is shorter than the other two. (E) NO₃⁻ has no net dipole moment because the N-O bonds are non-polar.

20. Choose all correct statements about O₂ and O₂⁻ based on molecular orbital theory. (A) Both molecules have a higher ionization energy than a gaseous oxygen atom. (B) Both molecules are paramagnetic. (C) O₂ has a shorter bond length than O₂⁻. (D) O₂⁻ has more electrons and a higher bond order than O₂. (E) O₂⁻ has a smaller bond dissociation energy.

21. Shown to the right is the reaction coordinate diagram for the reaction: A + 2B → 2C. Which of the following statements are correct? (A) Based on the reaction coordinate diagram, the rate law can be determined to be: rate = kA². (B) The reaction mechanism consists of only one elementary step. (C) Compound C is generated twice as fast as compound A is consumed. (D) The overall reaction is endothermic. (E) Increasing the temperature would result in the formation of fewer compound C. 

1. 適合圓眼睛的眼線畫法是： (A)眼睛中央描粗 (B)眼頭包住 (C)上眼尾的眼線向下 畫 (D)上、下眼線在眼尾處要拉長。

2. 與皮膚的氧化還原有密切關係的是： (A)維生素A (B)維生素B (C)維生素C (D)維 生素D。

3. 下列何者不是按摩的功效？ (A)促進血液循環 (B)降低皮膚溫度 (C)促進皮膚張力 和彈力 (D)延緩皮膚老化。

4. 有關皮膚老化所產生之改變，下述何者為錯？ (A)年紀愈大皮膚彈性愈小 (B)皮膚容 易變薄與變乾 (C)皮脂腺的分泌通常增加 (D)指甲生長的速度增加。

5. 下列何者沒有血管的分佈？ (A)表皮層 (B)真皮層 (C)皮下組織 (D)脂肪組織。

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