A redox reaction is the one in whihc one reactant undergoes oxidation and other reduction.
It is identified by the change in oxidtion states of elements in reactants and products.
Thus
the redox reactions are
2. Determine which of these reaction(s) are redox reaction. 6 Li2O(s) + P4010(g) → 4 Li3PO4(s...
2. Classify each of the following reactions as precipitation, gas forming, redox, acid/base, combination, decomposition, double displacement or single displacement. Each reaction will have at least two classifications. a. Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s) b. H2SO3(aq) → SO2(g) + H2O(1) C. N2(g) + H2(g) → NH3(g) d. AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) ii. e. HCl(aq) + Ba(OH)2(aq) + H2O(l) + BaCl2(aq)
Which reaction is accompanied by an increase in entropy? A N2(g) + 3 H2(g) – 2 NH3(g) B. Ba(OH)2(s) + CO2(g) → BaCO3(s) + H2O(1) C. NH4NO2(s) – N2(g) + 2 H20(0) D.2 C2H2(g) + 5 O2(g) – 4 CO2(g) + 2 H2O(s) E. C8H16(1) + 12 O2(g) — 8 CO2(g) + 8 H 20(1)
14. In which of the following reactions will Kc = Ko? ooo 4 NH3(g) + 3 O2(g) = 2 N2(g) + 6 H2O(g) 2 SO3(g) + 2 NO(g) = 2 SO2(g) + 2 NO2(g) 4 N2(g) + 2 O2(g) = 4 N2O(g) 6 SO2(g) + 3 O2(g) = 6 SO3(g) None of the above reactions have Kc = Kp.
Part A. Which of the following is not a redox reaction? H2O(l) + NH3(g) NH4+(aq) + OH–(aq) 2H2(g) + O2(g) 2H2O(l) Zn(s) + H2SO4(aq) ZnSO4(aq) + H2(g) FeSO4(aq) + K2Cr2O7(aq) + 7H2SO4(aq) Cr2(SO4)3(aq) + 3Fe2(SO4)3(aq) + K2SO4(aq) + 7H2O(l) Cl2(g) + 2KBr(aq) Br2(l) + 2KCl(aq) Part B. A 43.46 mL sample of Na2SO3 was titrated with 68.99 mL of 0.128 M K2Cr2O7 solution in the presence of H2SO4. Calculate the molarity of the Na2SO3 solution. Enter to 3 decimal...
Which of the following is not a formation reaction? 1/2H2(g) + 1/2 Brale) > HBr(g) H2(g) + 1/2O2(g) → H20(4) Ca(s) + 1/2O2(g) → Cao(s) • 4Al(s) + 3/202(g) → Al2O3(s) H2O(l) +SO3(l) → H2SO4()
Antimony can react with chlorine gas to give antimonytrichloride. _____ Sb(s) + _____ Cl2(g)?_____ SbCl3(l) Which of the following is the best set of stoichiometric coefficients to balance this equation? (a) 1, 1, 1 (b) 1, 3, 2 (c) 4, 6, 4 (d) 2, 3, 2 (iv) The very stable compound SF6 is made by burning sulfur in an atmosphere of fluorine. S8(s) + 24 F2(g)?8 SF6(g) If you need 2.50 moles of SF6, you will need to use (a)...
Which of the following is the strongest oxidizing agent? 6 Cl2(g) + 2€ - 2 C1-(29) Cut(aq) + € - Cu(5) 5042-(29) + 4H+ (aq)+26 - H2SO3(aq) + H2O(1) MnO4+(29) + 4 H+ (aq) +3 e - MnO2(s) + 2 H2O(1) EP1.36 V EP0.52V E° -0.20 V E1.68 V 9 -- MnO2(s) 5042-(aq) 12 Cu*(aq) MnO4 (aq) 15 ci (aq) 18
1) 2) 3) A proposed mechanism for the reaction 2NO(g) +2H2(g) → N2(g) + 2H2O(g): Step 1: 2NO(g) + N2O2(g) (very fast, reversible) Step 2: N2O2(g) + H2(g) N20(g) + H20(g) (slow) Step 3: N2O(g) + H2(g) →N2(g) +H2O(g) (fast) What is the rate law for the overall reaction? Ok[NO2 Ok[NO]2[H212 O k[NO]2[H2] Ok[N20][H2] k[NO]1/2[H2] 2NO(g) +Cl2 (g) → NOCI (8) Experiment concentration of NO (M) 0.09 0.045 0.045 concentration of Cl2(M) Rate (M/s) 0.01 3.40 x 10-4 8.50 x...
Which of the following is not a formation reaction? O 1/2H2(g)+ 1/2 Br2l)HBr(g) O H2lg)+1/202(8)-H2O() Ca(s)+ 1/202(g)-CaO(s) 4Al(s)+3/202(g)> Al203(s) H20()+ SO3le) H2SO4le)
Questions 1 - 5 s) + CO2 (g) b. CO2 (s) → CO2 (g) c. 4 C3H5N3O9(l) → 6 N2 (g) + 12 CO2 (g) +10 H2O (g) +O2 (g) d. O2(g) + 2 H2 (g) → 2 H2O (g) e. More than one correct answer present. 2. How much Lithium can be produced in 50.0 Amps is applied to a molten LiBr for 43 minutes? 3. What is the standard electrochemical potential for an electrochemical reaction (n=3) at 273.15...