阿摩線上測驗
登入
首頁
>
學士後西醫-化學
>
106年 - 106 高雄醫學大學_學士後醫學系招生考試:化學#77049
> 試題詳解
23. Which of the following species has a trigonal bipyramid structure?
(A) IF
5
(B) I
3
−
(C) NH
3
(D) PCl
5
(E) All of the above.
答案:
登入後查看
統計:
A(6), B(0), C(1), D(29), E(1) #2020327
詳解 (共 1 筆)
pylee0728
B1 · 2023/10/23
#5951843
p3d雜化軌道是由1個ns軌道、3個np...
(共 336 字,隱藏中)
前往觀看
3
0
其他試題
19. A catalyst ___________. (A) changes the enthalpy of the reaction (B) does not change the activation energy (C) provides an alternate pathway to the reaction (D) does not change the effective collisions (E) is consumed when more reacting molecules are added
#2020323
20. For a gas sample, which conditions of P (pressure), T (temperature), and n (molar number), respectively, are most ideal? (A) high P, high T, high n (B) low P, low T, low n (C) high P, low T, high n (D) low P, high T, high n (E) low P, high T, low n
#2020324
複選題21. One mole of an ideal gas at 20 °C is expanded isothermally and reversibly from 100 L to 200 L. Which statement is correct? (A)△ Sgas = 0 (B) △ Ssurr = 0 (C) △ Suniv = 0 (D) △ Sgas = Rln2 (E) △ Sgas = △Ssurr
#2020325
22. Which of the following ionic compounds has the largest lattice energy? (A) LiF (B) NaCl (C) MgO (D) KBr (E) BaCl2
#2020326
24. Naturally occurring copper exists in two isotopic forms: 63Cu and 65Cu. The atomic mass of copper is 63.55 amu. What is the approximate natural abundance of 63Cu? (A) 70% (B) 63% (C) 90% (D) 50% (E) 30%
#2020328
25. Mixing 20 mL of a 4.0 M sodium chloride solution with 40 mL of a 2.0 M calcium chloride solution results in a solution with a chloride ion concentration of M. (A) 2.67 (B) 3.33 (C) 4.00 (D) 4.33 (E) 5.00
#2020329
26. How many electrons in an atom can have the quantum numbers n = 4, l = 1? (A) 2 (B) 6 (C) 10 (D) 18 (E) 32
#2020330
27. The following reaction takes place at 120 °C: H2O(l) → H2O(g) , ΔH = 44.0 kJ/mol, ΔS = 0.119 kJ/mol·K. Which of the following must be true? (A) The reaction is not spontaneous. (B) The reaction is spontaneous. (C) ΔG < 0 (D) Two of these. (E) None of the above.
#2020331
28. How many σ bonds and π bonds are there in H3C–CH2–CH CH–CH2–C CH ? (A) 16, 3 (B) 13, 2 (C) 10, 2 (D) 10, 3 (E) 14, 3
#2020332
29. ________________ is a method of separation that employs a system with two phases of matter, including a mobile phase and a stationary phase. (A) Chromatography (B) Distillation (C) Homogenization (D) Vaporization (E) Filtration
#2020333