Homework Answers
Pb
Reason- In the reactant side the oxidation state of Pb was +2 in PbCl2 but after the reaction the oxidation state of Pb is 0 i.e. after the reaction PbCl2 is getting converted to Pb which is in 0 oxidation state. Therefore it means Pb has gained 2 electrons and got reduced from Pb(+2) to Pb(0). Gain of electrons is referred to as REDUCTION.
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In the following reaction, which element was reduced? Fe(s) + PbCl2(aq) FeCl2(aq) + Pb(s) Fe Pb...
What element is being reduced in the following redox reaction? H2020) + ClO2(aq) → CIO," (aq)...
What element is being reduced in the following redox reaction? H2020) + ClO2(aq) → CIO," (aq) + O2(g) ОСІ Ос оо Ο Ν OH Submit Request Answer
5) Determine which element is oxidized and which element is reduced in the following redox reactions....
5) Determine which element is oxidized and which element is reduced in the following redox reactions. (4) Fe2O3 + CO ® Fe + CO2 Element oxidized ____________________ Element reduced _________________ Cr2O72- + H2C2O4 ® Cr3+ + CO2 Element oxidized ____________________ Element reduced ___________________ 6) Determine the balanced molecular, ionic and net ionic equations for the following single displacement (replacement) reaction. (9) (ME) Al(s) + HCl(aq) ® (IE) (NIE)
Identify the following solution reaction as acid-base / redox / precipitation reaction: 2NH4Cl(aq) + Pb(NO3)2 (aq)...
Identify the following solution reaction as acid-base / redox / precipitation reaction: 2NH4Cl(aq) + Pb(NO3)2 (aq) --> PbCl2(s) + 2NH4NO3(aq)
answ 10. 11, 12 xide ones are reduced to installe r e reaction with carbon monoxide Fe(s) + CO (8) Fe(s) + CO2 () Wh...
answ 10. 11, 12
xide ones are reduced to installe r e reaction with carbon monoxide Fe(s) + CO (8) Fe(s) + CO2 () Which of the of the following changes in condition will cause the equilibrium to shift to the right? (3 pts) (A) add Fe (B) removeCO ( C M CO (D) raise the temperature . Calculate the equilibrium copcentrations of land lat 700 K in a vessel that contains initial concentration of HI -0.36 M. The equilibrium...
Answer the following questions based on this reaction: Pb(NO3)2 (aq) + 2 NaCl (aq) PbCl2 (s)...
Answer the following questions based on this reaction: Pb(NO3)2 (aq) + 2 NaCl (aq) PbCl2 (s) + 2 NaNO3 (aq) a) If 225 mL of 12.95 M Pb(NO3)2(aq) are reacted with a solution made with 5.05 g of NaCl (aq), how many grams of lead (II) chloride will be precipitated? b) If the actual yield of lead (II) chloride is 1.06 g, what is the percent yield?
2NaCl(aq) + Pb(NO3)2(aq)-NaNO3(aq) + PbCl2(s) How many formula units of Pb(NO3)2 would be needed in the...
2NaCl(aq) + Pb(NO3)2(aq)-NaNO3(aq) + PbCl2(s) How many formula units of Pb(NO3)2 would be needed in the above reaction to produce 555kg of PbCl2?
What element is being reduced in the following (unbalanced) redox reaction, which occurs in acid? Ag(s)...
What element is being reduced in the following (unbalanced) redox reaction, which occurs in acid? Ag(s) + CN-(aq) + O2(g) --> Ag(CN)2- (aq) + H2O(l) C O Ag N K
Consider the reaction Fe(s) + 2HCl(aq)FeCl2(s) + H2(g) for which H° = -7.400 kJ and S°...
Consider the reaction Fe(s) + 2HCl(aq)FeCl2(s) + H2(g) for which H° = -7.400 kJ and S° = 107.9 J/K at 298.15 K. (1) Calculate the entropy change of the UNIVERSE when 1.552 moles of Fe(s) react under standard conditions at 298.15 K. Suniverse = J/K (2) Is this reaction reactant or product favored under standard conditions? (3) If the reaction is product favored, is it enthalpy favored, entropy favored, or favored by both enthalpy and entropy? If the reaction is...
Consider the reaction Fe(s) + 2HCl(aq) —FeCl2(s) + H2(g) for which A Hº = -7.400 kJ...
Consider the reaction Fe(s) + 2HCl(aq) —FeCl2(s) + H2(g) for which A Hº = -7.400 kJ and AS° = 107.9 J/K at 298.15 K. (1) Calculate the entropy change of the UNIVERSE when 1.769 moles of Fe(s) react under standard conditions at 298.15 K. Asuniverse = | JIK (2) Is this reaction reactant or product favored under standard conditions? (3) If the reaction is product favored, is it enthalpy favored, entropy favored, or favored by both enthalpy and entropy? If...
Consider the redox reaction Fe(s) + Cu2+ (aq) — Fe2+(aq) + Cu(s)
Consider the redox reaction Fe(s) + Cu2+ (aq) — Fe2+(aq) + Cu(s) Which substance gets oxidized? Which substance gets reduced? What is the reducing agent? What is the oxidizing agent?
What element is being reduced in the following redox reaction? H2020) + ClO2(aq) → CIO," (aq) + O2(g) ОСІ Ос оо Ο Ν OH Submit Request Answer
Identify the following solution reaction as acid-base / redox / precipitation reaction: 2NH4Cl(aq) + Pb(NO3)2 (aq) --> PbCl2(s) + 2NH4NO3(aq)
answ 10. 11, 12
xide ones are reduced to installe r e reaction with carbon monoxide Fe(s) + CO (8) Fe(s) + CO2 () Which of the of the following changes in condition will cause the equilibrium to shift to the right? (3 pts) (A) add Fe (B) removeCO ( C M CO (D) raise the temperature . Calculate the equilibrium copcentrations of land lat 700 K in a vessel that contains initial concentration of HI -0.36 M. The equilibrium...
2NaCl(aq) + Pb(NO3)2(aq)-NaNO3(aq) + PbCl2(s) How many formula units of Pb(NO3)2 would be needed in the above reaction to produce 555kg of PbCl2?
Consider the reaction Fe(s) + 2HCl(aq) —FeCl2(s) + H2(g) for which A Hº = -7.400 kJ and AS° = 107.9 J/K at 298.15 K. (1) Calculate the entropy change of the UNIVERSE when 1.769 moles of Fe(s) react under standard conditions at 298.15 K. Asuniverse = | JIK (2) Is this reaction reactant or product favored under standard conditions? (3) If the reaction is product favored, is it enthalpy favored, entropy favored, or favored by both enthalpy and entropy? If...
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