Which of the following reactions is a nonredox reaction? | a) CaCO3 --> CaO + CO2...
balance each of the following equations
Fall 209 CHM 105.004 Exam 2 Answer all the question in order in the blue book. Plesse leave at least two lines between question and show your calculations for full credit. N-6.023 x 10” particles per mol: R 0.08.205 L-atm/(mol-K) b) Al2(PO4) 3 e) CuSO4-5 H2O 1. Calculate the molar masses of: a) (NH4)2SO4 2. Calculate: a) the number of atoms of calcium in a 10.50 g sample of the metal b) the mass...
4. (1 point) Write balanced equations for the complete combustion of each of the following substances. a. C3H28 (1) + b. C2H,2011 (s) + 5. (2 points) Identify each of the following unbalanced reactions as belonging to one or more of the following categories: precipitation, acid-base, or oxidation-reduction. Type Reaction K2SO4 + Ba(NO3)2 → BaSO4 + KNO3 HCI + Zn → ZnCl2 + H2 HCl + AgNO3 → AgCl + HNO3 HC1+KOH →KCI+H2O Zn + CuSO4 → ZnSO4 + Cu...
IU. AS is positive for the reaction A) CaO (s) + CO2 (g) CaCO3 (S) B) N2 (g) + 3H2(g) → 2NH3 (g) C) 2503 (g) - 2802 (g) + O2 (g) D) Ag+ (aq) + Cl- (aq) → AgCl (s) E) H20 (1) + H20 (s) 11. AS is positive for the reaction A)2 Ca(s) + O2 (g) 2 Cao (s) B) 2 KClO3 (s) 2KCI(S) + 30 (g) C) HCl (8) + NH3 (8) ► NH4Cl (s) D)...
1. Determine if each of the following reactions is a redox reaction, or is not a redox reaction. a. C4H8 (g) + O2 + H20 (g) + CO2 (g) b. HCl (aq) + NaOH (aq) → H20 (1) + NaCl (aq) c. Fe2O3 + H2 → Fe + H2O d. Cu (s) + HNO3 (aq) → Cu(NO3)2 (aq) + NO2 (g) + H20 (1) e. CzHe(g) + 5 O2 (g) → 3 CO2 (g) + 4 H20 (g)
Calculate D (delta) Hrxn for the reaction: CaO(s) + CO2(g) -----> CaCO3(s) given these reactions and their DH’s: 1) Ca(s) + CO2(g) + ½ O2(g) -----> CaCO3(s) D(delta)H = -814.1kJ 2) 2Ca(s) + O2(g) -----> 2 CaO (s) D(delta)H = -1269.8kJ
e. -1135 Given the following reactions: CaCO3 (s)-> Cao (s) + CO2 (g) C (s, graphite) + O2 (g)-> Co2 (g) AH-393.5 kJ the enthalpy of the reaction CaCO3 (s) -> CaO (s) + C (s, graphite) + O2 (g) ΔH = 178.1 kJ is kJ Select one: 4 a. 7.01 x 10 b. 571.6 ) c. 215.4 d. -215.4 ie. -571.6 Check Given the data in the table below, AH for the reaction
Which of the following processes has a negative AS? A) CaCO3(s) → Cao(s) + CO2(g) B) H2O(g) → H2O(s) C) CO2(s) + CO2(g) D) C6H1206(s) → C6H1206(aq) E) AS cannot be negative
Calculate DHrxn for the reaction: CaO(s) + CO2(g) à CaCO3(s) given these reactions and their DH’s: 1) Ca(s) + CO2(g) + ½ O2(g) à CaCO3(s) DH = -814.1kJ 2) 2Ca(s) + O2(g) à 2 CaO (s) DH = -1269.8kJ
Write the expressions for K and Kp for the following reactions: A) CaCO3<------->CaO + CO2 B) C6H12O6 +6O2<------->6CO2 + 6H2O
Consider the following reaction at equilibrium, CaCO3(s) ↔ CaO(s) + CO2(g). Which of the following statements are true regarding this equilibrium? Select all that are True. a) If CaO(s) is added from the equilibrium mixture the reaction will remain unchanged. b) If CaO(s) is removed from the equilibrium mixture the reaction will shift to the left. c) If CO2(g) is added to the equilibrium mixture the reaction will shift to the right. d) If CO2(g) is added to the equilibrium...