Homework Answers
Redox reactions are the type of chemical reaction in which the oxidation states of atoms are changed. It is achieved by transfer of electron from one atom to another. In the above reactions, only reaction 2nd and 3rdare the example of redox reaction..
In 2nd N is reduced and H is oxidized
3rd is a combustion reaction which is again considered to be a redox reaction
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Identify which of the following reactions are redox reactions. 1st attempt Choose one or more: O...
Which of the reactions below does not represent a redox reaction? O 3 Al (s) +...
Which of the reactions below does not represent a redox reaction? O 3 Al (s) + 6 HCl(aq) - 3H2(g) + AICI3 (aq) O 2 NaCl (aq) + Pb(NO3)2 (aq) PbCl2 (s) + 3 NaNO3 (aq) 2 Nal (aq) + Br2 (1) 2 NaBr (aq) + 12 (g) O 2 H20 (1)2 H2 (g) + O2 (g) None of these
For the reactions below, which reactions have negative entropy? 1. AgNO3(aq) + NaCl(aq) --> AgCl(s) +...
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
19. Which of the following are redox reactions? For those that are, identify the oxidizing agent...
19. Which of the following are redox reactions? For those that are, identify the oxidizing agent and the reducing agent: A. Sn²+ (aq) + Br+ (aq) Sn4+(aq) + 2 Br(aq) B. 2 F2 (g) + 2 H20 (1) ► 4 HF (aq) + O2 (8) C. NaHCO3 (aq) + HCl (aq) → NaCl (aq) + CO2 (g) + H20 (1)
Indicate which one of the following reactions results in a positive DSsys. AgNO3(aq) + NaCl(aq) —...
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)
Redox Equations Which of the following reactions are redox reactions? Identify the substance oxidized, the substance...
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...
2. Classify each of the following reactions as precipitation, gas forming, redox, acid/base, combination, decomposition, double...
2. Classify each of the following reactions as precipitation, gas forming, redox, acid/base, combination, decomposition, double displacement or single displacement. Each reaction will have at least two classifications. a. Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s) b. H2SO3(aq) → SO2(g) + H2O(1) C. N2(g) + H2(g) → NH3(g) d. AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) ii. e. HCl(aq) + Ba(OH)2(aq) + H2O(l) + BaCl2(aq)
Balance the following chemical equations. Write the word "Balanced" if the equation is already balanced. a)...
Balance the following chemical equations. Write the word "Balanced" if the equation is already balanced. a) 2 H2(g) + O2(g) → 2 H20(1) b) 2NH3(g) + H2SO4(90) → (NH4)2SO4(94) Decomposition Reactions a) 2H2O2(0) → 2 H2O(l) + O2(g) b) "Balanced" CaCO3(s) → "Balanced" CaQ/s) + "Balanced" CO2(g) Single Displacement Reactions a) Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g) b) 2Nas) + 2H2O(1) ► 2NaOH(aq) + H2(g double Displacement Reactions a) AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) “Balanced" b) H2SO4(aq)...
Indicate which one of the following reactions results in a positive ?Ssys. a. AgNO3(aq) + NaCl(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?
1. Determine if each of the following reactions is a redox reaction, or is not a...
1. Determine if each of the following reactions is a redox reaction, or is not a redox reaction. a. C4H8 (g) + O2 + H20 (g) + CO2 (g) b. HCl (aq) + NaOH (aq) → H20 (1) + NaCl (aq) c. Fe2O3 + H2 → Fe + H2O d. Cu (s) + HNO3 (aq) → Cu(NO3)2 (aq) + NO2 (g) + H20 (1) e. CzHe(g) + 5 O2 (g) → 3 CO2 (g) + 4 H20 (g)
List whether the following equations are classified as single replacement, double replacement, combination, decomposition, combustion and/or...
List whether the following equations are classified as single replacement, double replacement, combination, decomposition, combustion and/or oxidation reaction. 1) 2Mg(s) + O2(g) -> 2MgO(s) 2) Mg(s) + 2HCL (aq) -> MgCl2(aq) + H2 3) FeCl3 + 3NaOH -> Fe(OH)3 + 3NaCl 4) 3CuCl2 + 2Al -> 2AlCl3 + 3Cu 5) NaCl(aq) + AgNO3(aq) -> AgCl(s) + NaNO3 6) (NH4)2CO3 -> 2NH3 + CO2 + H20
Which of the reactions below does not represent a redox reaction? O 3 Al (s) + 6 HCl(aq) - 3H2(g) + AICI3 (aq) O 2 NaCl (aq) + Pb(NO3)2 (aq) PbCl2 (s) + 3 NaNO3 (aq) 2 Nal (aq) + Br2 (1) 2 NaBr (aq) + 12 (g) O 2 H20 (1)2 H2 (g) + O2 (g) None of these
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
19. Which of the following are redox reactions? For those that are, identify the oxidizing agent and the reducing agent: A. Sn²+ (aq) + Br+ (aq) Sn4+(aq) + 2 Br(aq) B. 2 F2 (g) + 2 H20 (1) ► 4 HF (aq) + O2 (8) C. NaHCO3 (aq) + HCl (aq) → NaCl (aq) + CO2 (g) + H20 (1)
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)
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...
2. Classify each of the following reactions as precipitation, gas forming, redox, acid/base, combination, decomposition, double displacement or single displacement. Each reaction will have at least two classifications. a. Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s) b. H2SO3(aq) → SO2(g) + H2O(1) C. N2(g) + H2(g) → NH3(g) d. AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) ii. e. HCl(aq) + Ba(OH)2(aq) + H2O(l) + BaCl2(aq)
Balance the following chemical equations. Write the word "Balanced" if the equation is already balanced. a) 2 H2(g) + O2(g) → 2 H20(1) b) 2NH3(g) + H2SO4(90) → (NH4)2SO4(94) Decomposition Reactions a) 2H2O2(0) → 2 H2O(l) + O2(g) b) "Balanced" CaCO3(s) → "Balanced" CaQ/s) + "Balanced" CO2(g) Single Displacement Reactions a) Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g) b) 2Nas) + 2H2O(1) ► 2NaOH(aq) + H2(g double Displacement Reactions a) AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) “Balanced" b) H2SO4(aq)...
1. Determine if each of the following reactions is a redox reaction, or is not a redox reaction. a. C4H8 (g) + O2 + H20 (g) + CO2 (g) b. HCl (aq) + NaOH (aq) → H20 (1) + NaCl (aq) c. Fe2O3 + H2 → Fe + H2O d. Cu (s) + HNO3 (aq) → Cu(NO3)2 (aq) + NO2 (g) + H20 (1) e. CzHe(g) + 5 O2 (g) → 3 CO2 (g) + 4 H20 (g)
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