61. Indicate which one of the following reactions most certainly results in a negative AS sys....
Indicate which one of the following reactions most certainly results in a negative DSsys. CaCO3(s) —CaO(s) + CO2(g) H2O(g) + H2O(s) 1402(8) + 3NH4NO3(s) + C10H22(1) 3N2(8) + 17H2O(g) +10CO2(g) CuSO4.5H2O(s) CuSO4(s) + 5H2O(g) CO2(aq) + CO2(8)
Indicate which one of the following reactions most certainly results in a negative DSsys. CaCO3(s) —CaO(s) + CO2(g) H2O(g) + H2O(s) 1402(8) + 3NH4NO3(s) + C10H22(1) 3N2(8) + 17H2O(g) +10CO2(g) CuSO4.5H2O(s) CuSO4(s) + 5H2O(g) CO2(aq) + CO2(8)
Indicate which one of the following reactions results in a positive DSsys. AgNO3(aq) + NaCl(aq) — 7 AgCl(s) + NaNO3(aq) C2H2O2(g) + 2 CO(g) + H2(g) H2O(g) + H20(1) H2(g) +12(g) D - HI(g) HCI(g) + H2O(1) + HCl(aq)
Indicate which one of the following reactions results in a positive ?Ssys. a. AgNO3(aq) + NaCl(aq) <-->AgCl(s) + NaNO3(aq) b. HCl(g) + H2O(l) <--> HCl(aq) c. H2(g) + I2(g) <--> 2 HI(g) d. C2H2O2(g) <--> 2 CO(g) + H2(g) e. H2O(g) <--> H2O(aq) The answer is D. Can someone please explain why? and how the answer was determined?
-2. Indicate which one of the following reactions results in a positive ASsys. a. AgNO3(aq) + NaCl(aq) 5 AgCl(s) + NaNO, (aq) b. HCl(g) + H2O(1) SHCl(aq) c. H,(g) +1,(8) $2HI(g) d. C,H,O,(8) S2CO(g) + H, (g) e. H,O(g) SHO(1)
For the reactions below, which reactions have negative entropy? 1. AgNO3(aq) + NaCl(aq) --> AgCl(s) + NaNO3(aq) 2. H2O(g) + CO2(8) --> H2CO3(aq) 3. H2(g) +12(8) --> 2 HI(g) 4. C2H2O2(g) --> 2 CO(g) + H2(g) 5. H2O(g) --> H2O(1) O 2, 3, 4 1, 2,5 1,4,5 0 2,4
Balance the following reactions and label the type of reaction. POST-LAB PROBLEMS Balance the following reactions and label the type of reaction. 1. Reaction Type Balance Chemical Reaction CaCO, CaO Co, a. Fe CuSO,(n Cu b. FeSO, 4 (a) Al O2 AlO, C. Na SO BaC NaCl d. BaSO, + 4() CH CO, H,O е. + 2 (g) HCI NaOH (aq) но, f. NaCl KNO, РЫ, * _Pb(NO) KI (ag) 2 (a) 3 (ag) 2 (ag) K,SO H,O H_SO КОН...
4. Indicate which of the following reactions results in a positive AS. a. Ba(NO3)2(aq) + Na So. (aq) = BaSO (s) + 2 NaNO,(aq) b. 4 Fe(s) +3 0,(g) = 2 Fe 0,(s) c. 2 Hg) +0,(g)52 H0g) d. Zn(s) + 2 HCl(aq) = ZnCl(aq) +H. (g) e. 2 Na(s)+Cl2(g) = NaCl(s)
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...
For which one of the following reactions will the enthalpy change be approximately equal to the internal energy change? 2 NaN3(s) → 2 Na(s) + 3 N2(g) 2 H2O( ℓ ) → 2 H2(g) + O2(g) 2 Sb(s) + 3 I2(g) → 2 SbI3(s) Ca(NO3)2(aq) + 2 NH4Cl(aq) → CaCl2(aq) + 2 NH4NO3(aq) CaCO3(s) → CaO(s) + CO2(g)