Question 14 Which of the reactions is/are redox reactions Question 14 1 pts Which of the...
D Question 14 1 pts Which of the reactions is/are redox reactions? LI(s) + Clale) ---> 211C1(s) HCl(aq) + LiOH(aq) → H2000+ LICH(aq) KCIO3(s) →KCIO(s) +Ozle) Ca(NO3)2(aq) + NaCO3(aq) -NaNO3(aq) + Caco (s) Ca(NO3)2(s) -> 2NO3(aq) + Ca(aq)
Question 13 1 pts A chemical system with a large equilibrium constant is usually associated with negative values of A Gº. Which description of this system is correct? The forward reaction is spontaneous and mostly products are present. The forward reaction is spontaneous and mostly reactants are present. The reverse reaction is spontaneous and mostly reactants are present The reverse reaction is spontaneous and mostly products are present. At equilibrium, equal amounts of reactants and products are present. At equilibrium...
Given the three reactions that you will measure (below) with the reaction enthalpies reported in the literature, use Hess's Law to predict the enthalpy of dissolution of the target reaction. Explain how you will manipulate the equations and report your final value. 1: Ca(NO3)2* 4H2O(5) → Ca2+ (aq) +2 NO3- (aq) + 4H2O(1) Arxn = 30.3 mol 2: Na2CO3(s) +2 Na + (aq) + CO32-(aq) AHrxn=-26.7 mol AH rxn = 16.7 3: Ca(NO3)2 + 4H2O(5) + Na2CO3(5) → CaCO3(s) +...
Which of the following reactions are redox reactions? Check all that apply. a.) Pb(NO3)2+MgCl2→Mg(NO3)2+PbCl2 b.) 2SO2+O2→2SO3 c.) CaCl2+Na2CO3→2NaCl+CaCO3 d.)C2H2+2H2→C2H6 f.)HCl+NaOH→H2O+NaCl
Redox and Non-Redox Reactions Redox and Non-Redox Reactions For each of the following reactions, answer: True or False? -- "This is an oxidation-reduction (redox) reaction." C Au(s) + 3HNO3(aq) + 4HCl(aq) + HAUCl4(aq) + 3NO2(g) + 3H20 (1) AgBr(s) + 2Na2S2O3(aq) - Na3Ag(S203)2(aq) + NaBr(aq) 4Br2(aq) + H2S2O3(aq) + 5H20(1) - 8HBr(aq) + 2H2SO4(aq) 2H2CrO4(aq) —+H2Cr2O7(aq) + H20(1) 3H20(1) + P4(s) + 3KOH(aq) — 3KH2PO2(aq) + PH3(g) Cao(s) + CO2(g) + CaCO3(s) Hg2Cl2(s) + 5HNO3(aq) → 2Hg(NO3)2(aq) + HNO2(aq) +...
Redox Equations Which of the following reactions are redox reactions? Identify the substance oxidized, the substance reduced, the oxidizing agent, the reducing agent. 1.2 Mg(s) + O2(g) → 2 MgO (s) 2. H SO. (aq) + Al(OH) (aq) → Al(SO.) (aq) + H,O (1) 3. 2 Na (s) + H2O (1) ► 2 NaOH(aq) + H2(g) 4. Cao (s) + CO2(g) → Caco, (s) 5. AgNO, (aq) + NaCl (aq) ► AgCl(s) + NaNO, (aq) Identify the substance oxidized, the...
Which of the following are redox reactions? 2AgNO3(aq) + Cu(s) + Cu(NO3)2(aq) + 2Ag(s) 2Cus(s) + O2(g) + Cu(s) + SO2(g) 2AgNO3(aq) + Na2SO4(aq) + 2NaNO3(aq) + Ag2SO4(s) CO(g) + H2O(g) + CO2(g) + H2(g) CO2(g) + 2H20(1) + H30+(aq) + HCO3(aq)
QUESTION 1 What mass of NaCl is present in 0.50 L of a 0.7 M NaCl solution? O a. 0.35 g b. 20.5 g c. 19.6 g O d. 28.6 g O e. 3.5 g QUESTION 2 Identify the spectator ions in the following reaction. (aq) + 2Na (aq) + CO3 (aq)CaCO3(s)+ 2Na (aq) + NO3 (aq) Ca2 (aq)+ 2NO3 a. Na and NO3 + b.NO 3 Oc Ca2+ and CO 32 and CO 3 Od. Ca 2+ and Na...
Which of the following are redox reactions? CO2(g) + 2H2O(l) H3O+(aq) + HCO3-(aq) 2CuS(s) + O2(g) Cu(s) + SO2(g) 2AgNO3(aq) + Cu(s) Cu(NO3)2(aq) + 2Ag(s) 2AgNO3(aq) + Na2SO4(aq) 2NaNO3(aq) + Ag2SO4(s) CO(g) + H2O(g) CO2(g) + H2(g)
QUESTION 1 In the commercial manufacture of nitric acid, how many moles of NO2(g) are required to produce 250 grams of nitric acid, HNO3(aq) 3NO2(g) + H20(1) - 2HNO3(aq) + NO(g) 69.5 moles 12.7 moles 23.8 moles 5.95 moles 47.6 moles QUESTION 2 The net ionic equation for the reaction of the strong electrolytes lead nitrate and sodium carbonate to form the precipitate lead carbonate is Pb2+(aq) + CO32-(aq) + 2Na+(aq) + 2NO3- (aq) - PCO3(s) + 2NaNO3(aq) Pb2+(aq) 2NO3"(aq)...