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Question 16 4 pts Which changes is endothermic? A) CO2(g) → CO2(s) B) CO2(g) CO2(0) C)...
Question 10 4 pts Which process has AS > 0 (increase S)? A) H2O(g) + H2O(1) B) 2Hg(1) + O2(g) - 2HgO(s) C) CaO(s) + CO2(g) CaCO3(s) D) 2Na,O2 (s) + 2H2O(s) 4NaOH(aq) + O2 (g) o B Ос ОА OD 4 pts Question 11
Question 18 4 pts Which, if any, of the following processes is spontaneous under the specified conditions? A) H200) H2O(s) at 25°C B) CO2(s) + CO2(s) at 25°C C) 2H2O(g) + 2H2(g) + O2(g) at 25°C D) C(graphite)C(diamond) at 25°C and 1 atm ОА Ос OB OD Ante
Question 9 4 pts Which of the following species is amphoteric? A) CO32- B) HF C) NH* D) HPO 2 ОА OD OB Ос 4 pts Question 10
5 pts Question 17 Which structure belongs to the H NMR spectrum shown below? 3 2 PPM B) 0 C) D) ОА OB Ос OD
Question 17 4 pts What is the relationship between Kp and Kc for the reaction below? 4 NO(g) + 6 H2O(g) = 4 NH3(g) + 5 O2(g) A) K- RT RT? B) K- C) K. - (RT)K, RT D) K- OB ОА OD Ос
4 pts Question 15 Identify the place which has the highest boiling point of water. A) Death Valley, 282 feet below sea level B) a pressurized passenger jet, 35,000 feet C) New Orleans, sea level D) Mt. Everest, 29,035 feet OD OB ос ОА 4 pts Question 16
Question 13 4 pts Which of the following hydrocarbons has one pi bond and one cycloalkane? A) C6H8 B) C5Hg C) C3H8 D) C4H8 OB ОА Ос OD 4 pts
Question 6 4 pts Identify the colligative property. A) vapor pressure elevation B) Henderson-Hasselbalch elevation C) boiling point elevation D) freezing point elevation ОА Ос OD OB 4 pts D Question 7
Question 4 1 3 Mn2+ (aq) + 2Al(s) + 3 Mn(s) + 2 A13+ (aq) For the balanced equation above, calculate Ecell if [Mn2+1= .05 M and [A13+) = 4 x 10-4M. A.-0.027 V B. +1.42 V C. +0.192 V D. +0.508 V E. -0.541 V. ОА OB Ос OD OE Question 5 1 pts How many grams of tin will plate out from an Sn2+ (aq) solution in an electrolytic cell when 4.13 mol e pass through the circuit?...
Question 33 2 pts Which one of the following molecules is polar? (a) BC13 (b) Bel2 (c) CCIA (d) CHCl3 (e) Br2 Ос ОЕ OB OD ОА