a. | 2H2O2(l) →2H2O(l) + O2(g) | b. | CaCO3(s)→ CaO(s) +CO2(g) | c. | NO(g) +O3(g) → NO2(g) + O2(g) | d. | 2C2H6(g) +7O2(g) → 4CO2(g) + 6H2O(l) | e. | 4NH3(g)+ 5O2(g) → 4NO(g) + 6H2O(g) |
For which of these reactions will the difference betweenΔH° and ΔE° be the greatest? a. 2H2O2(l)...
Question 9 For which of these reactions will the difference between AH° and AEº be the greatest? NO(g) + O3(g) —+NO2(g) + O2(g) 4NH3(g) + 5O2(g) + 4NO(g) + 6H2O(g) 2C2H6(g) + 702(g) + 4CO2(g) + 6H20(1) 2H2O2(1) +2H2O(1) + O2(g) 0 CaCO3(s) CaO(s) +CO2(8)
16. Given the following reactions CaCO3 (s) → CaO (s) + CO2 (g) ΔH°=178.1 kJ C(s, graphite) + O2 (g) → CO2 (g) ΔH°=-393.5 k According to Hess's Law, what is the enthalpy of the reaction (k) for CaCO3(s) → CaO (s)+C(s. graphite) +O2(g)? -571.6 -215.4 5716 215.4 701.2 Question 17 According to the definition of standard enthalpy of formation, ΔH°, which of the following's ΔH° is zero? Question 18Given the data in the table below, calculate the ΔH°rxn (kJ) for the reaction 4NH3(g)+5O2 (g) → 4NO (g)+6H2O (I)
Given the following data: 2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(l) ΔH = -2600 kJ C2H2(g) + 2H2(g) → C2H6(g) ΔH = -312 kJ 2H2(g) + O2(g) → 2H2O(l) ΔH = -572 kJ Find the ΔH of the following reaction: 4CO2(g) + 6H2O(l) → 2C2H6(g) + 7O2(g)
Which of the following reactions would ΔH = ΔE? 2Al(s) + 6HCl(aq) --> 2AlCl3(aq) + 3H2(g) CaCO3(s) --> CaO(s) + CO2(g) C(s) + O2(g) --> CO2(g) C3H4(g) + 4O2(g) --> 3CO2(g) + 2H2O(l) Zn+2(aq) + 2OH-(aq) --> Zn(OH)2(s)
Determine the sign of As for each of the following reactions. a. CH4(g) + 202(g) → 2H2O(l) + CO2(g) b. 2C2H6(g) + 702(g) + 6H2O(l) + 4CO2(g) c. Ca(OH)2(s) > CaO(s) + H2O0) .
Use the set of three reactions shown below to answer the questions that follow. 2NO(g) + O2(g) → 2NO2(g) ΔH = -116 kJ 2N2(g) + 5O2(g) + 2H2O(l) → 4HNO3(aq) ΔH = -256 kJ N2(g) + O2(g) → 2NO(g) ΔH = +183 kJ If 27.9 g of NO g is reacted with excess oxygen, how much heat energy is produced? What mass of liquid water will be consumed during the production of 33900 J of energy assuming that there is...
8. Find ∆H◦ of the reaction 2C2H6(g) + 7O2(g) = 4CO2(g) + 6H2O(g), as it is written, given the following: 2C(s) + 3H2(g) = C2H6(g), ∆H◦ = −84.68 kJ, 2H2(g) + O2(g) = 2H2O(g), ∆H◦ = −483.6 kJ, C(s) + O2(g) = CO2(g), ∆H◦ = −393.5 kJ. (A) −3194 kJ (B) −3109 kJ (C) −2940 kJ (D) −2855 kJ (E) −1428 kJ
I. Classify each of the following reactions as: A) combination, B) decomposition, C) combustion, D) single displacement and E) double displacement ___________________________________1. 2Al2O3 → 4Al + 3O2 ___________________________________2. Br2 + BaI2 → BaBr2 + I2 _________________________________________3. 2C2H2 + 5O2 → 4CO2 + 2H2O + energy ___________________________________4. BaCl2 + K2CO3 → BaCO3 + 2KCl ___________________________________5. Pb + O2 → PbO2 ___________________________________6. H2 + Br2 → 2HBr ___________________________________7. AgNO3 + NaCl → AgCl + NaNO3 ___________________________________8. 2H2O2 → 2H2O + O2 ___________________________________9. Zn + CuCl2 → Cu + ZnCl2 ___________________________________10. C5H8 + 7O2 → 5CO2 + 4H2O + energy ___________________________________11. CuO + 2HCl → CuCl2 + H2O ___________________________________12. 2Al + 3Br2 → 2AlBr3 ___________________________________13. 2C2H2 + 5O2 → 4CO2 + 2H2O + energy ___________________________________14. Fe2O3 + 3C → 2Fe + 3CO ___________________________________15. C6H12O6 → 2C2H6O + 2CO2
For which of the following reactions is AS° > 0. Choose all that apply. 2C2H6(g) + 702(g) + 4CO2(g) + 6H2O(g) ONH4HS(s) + NH3(g) + H2S(g) S(s,rhombic) + 2CO(g) → SO2(g) + 2C(s,graphite) N2(g) + 3H2(g) + 2NH3(g) 2H2O(g) + 2Cl2(g) + 4HCI(g) + O2(g) Submit Answer Retry Entire Group 6 more group attempts remaining
Which of the following reactions could be considered a "precipitation" reaction? NaOH(aq) + HCl(aq) + NaCl(aq) + H2O(1) 2H2O(1) + 2H2(g) + O2(g) + 2Nal(aq) + Pb(NO3)2(aq) + 2NaNO3(aq) + Pbl2(s) 2C2H6(g) + 702(g) + 4CO2(g) + 6H2O(1) None of these