QUESTION 5 All of the following reactions concerning alkali metals are correct except 2Na (s) +...
All of the following reactions can be described as displacement reactions except Select one: a. 2Na(s) + 2H2O(1) ► 2NaOH(aq) + H2(g). ob. CoH(1) + Cl2(g) → CH3C1(1) + HCl(g). oc. CuSO4(aq) + Fe(s) → Cu(s) + FeSO4(aq). O d. Zn(s) + FeCl2(aq) → ZnCl2(aq) + Fe(s). e. Cu(s) + 2AgNO3(aq) + Cu(NO3)2(aq) + 2Ag(s).
For each of the following reactions, predict the sign of ΔS°. 2Na(s) + Cl2(g) → 2NaCl(s) KBr(s) → K+(aq) + Br−(aq) 2H2(g) + O2(g) → 2H2O(l) C2H2(g) + 4F2(g) → 2CF4(g) + H2(g)
Sodium reacts with water according to the reaction: 2Na(s)+2H2O(l)→2NaOH(aq)+H2(g) Identify the oxidizing agent. a) H2O(l) b) NaOH(aq) c) Na(s) d) H2 (g)
B. Calculate the standard entropy change for the reaction 2Na(s)+Cl2(g)?2NaCl(s) using the data from the following table: Substance ?H?f (kJ/mol) ?G?f (kJ/mol) S? [J/(K?mol)] Na(s) 0.00 0.00 51.30 Cl2(g) 0.00 0.00 223.1 NaCl(s) -411.0 -384.0 72.10 Express your answer to four significant figures and include the appropriate units. Part A Predict the sign of the entropy change, AS°,for each of the reaction displayed. Drag the appropriate items to their respective bins. Ag+(aq) + Cl-(aq) → AgCl(s) | | Ca(OH)2(s) →...
Sodium metal reacts with water to produce hydrogen gas according to the following equation: 2Na(s) + 2H2O(l)2NaOH(aq) + H2(g) The product gas, H2, is collected over water at a temperature of 20 °C and a pressure of 753 mm Hg. If the wet H2 gas formed occupies a volume of 5.60 L, the number of moles of Na reacted was ____ mol. The vapor pressure of water is 17.5 mm Hg at 20 °C.
For the reaction 2Na(s) + 2H2O(1) -2NaOH(aq) + H2(g) AH° -368.6 kJ and AS --15.3 J/K The maximum amount of work that could be done when 2.20 moles of Na(s) react at 261 K, 1 atm is kJ. Assume that AH and AS are independent of temperature.
What is the enthalpy change, ΔH∘rxn , for each of the following reactions? 1.2.3.Ag+(aq)+Li(s)Fe(s)+2Na+(aq)2K(s)+2H2O(l)→→→Ag(s)+Li+(aq)Fe2+(aq)+2Na(s)2KOH(aq)+H2(g) Express your answers in kilojoules to four significant figures separated by commas.
Enter your answer in the provided box. Consider the reaction 2Na(s) + 2H2O(1) 2NaOH(aq) + H2) When 2 moles of Na react with water at 25°C and 1 atm, the volume of H2 formed is 24.5 L. Calculate the magnitude of work done in joules when 0.25 g of Na reacts with water under the same conditions. (The conversion factor is 1 L atm = 101.3 J.) J
For which of the following reactions is ?H?rxn equal to ?H?f of the product(s)? You do not need to look up any values to answer this question. Check all that apply. H2O2(g)?12O2(g)+H2O(g) Na(s)+12F2(l)?NaF(s) 2H2(g)+O2(g)?2H2O(g) 2Na(s)+F2(g)?2NaF(s) H2(g)+12O2(g)?H2O(g) Na(s)+12F2(g)?NaF(s)
Which is not a chemical reaction of the alkali metal sodium? Select one: A. 2 Na(s) + 2 NH3(l) → 2 NaNH2(sol) + H2(g) B. 2 Na(s) + Cl2(g) → 2 NaCl(s) C. 2 Na(s) + 2 H2O(l) → 2 NaOH(aq) + H2(g) D. 4 Na(s) + 2 O2(g) → 2 Na2O(s) + Na2O2(s)