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Redox Reactions Solutions Library

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185 solutions

Redox Reactions

Q. Consider the following reaction and select the false statement below.NaI + 3HOCl → NaIO3 + 3HClA. HOCl is the oxidizing agentB. Cl is reducedC. NaI...

Solved • Mar 30, 2020

Redox Reactions

Q. Classify each of the following as a redox reaction or a non-redox reaction. 2CO + O2 → 2CO2 SO3 + H2O →H2SO4 Zn + CuCl2 → ZnCl2 + Cu HCl + NaOH → H...

Solved • Mar 20, 2020

Redox Reactions

Q. Identify the oxidizing and reducing agents.Cr2O2−7(aq)+I−(aq)→Cr3+(aq)+IO−3(aq) (acidic solution)Express your answers as chemical expressions separ...

Solved • Mar 17, 2020

Redox Reactions

Q. Identify the reducing agent in the following reaction:2 MnO−4 + 10 Cl− + 16 H+ → 5 Cl2 + Mn2+ + 8 H2O(A) Cl−(B) MnO−4(C) Cl2(D) Mn2+ (E) H+

Solved • Nov 28, 2019

Redox Reactions

Q. Which of the following are oxidation-reduction reactions?I. PCl3 + Cl2 → PCl5II. Cu + 2AgNO3 → Cu(NO3)2 + 2AgIII. CO2 + 2LiOH → Li2CO3 + H2OIV. FeC...

Solved • Nov 21, 2019

Redox Reactions

Q. What is the reducing agent in the following reaction?5 Fe2+(aq) + MnO4-(aq) + 8 H+(aq) → 5 Fe3+(aq) + Mn2+(aq) + 4 H2O(I)A. MnO4-B. Fe3+C. Mn2+D. F...

Solved • Oct 3, 2019

Redox Reactions

Q. If each of the following metals is submerged in an aqueous solution containing cobalt ions, which of these metals will be oxidized by the ions of c...

Solved • Sep 13, 2019

Redox Reactions

Q. Consider the following reaction below in which pure iron is produced from iron(III) oxide in a blast furnace:          3 CO (g) + Fe2O3 (g) → 2 Fe ...

Solved • Sep 13, 2019

Redox Reactions

Q. Indicate whether the following balanced equations involve oxidation-reduction. If they do, identify the elements that undergo changes in oxidation ...

Solved • Aug 30, 2019

Redox Reactions

Q. Indicate whether the following balanced equations involve oxidation-reduction. If they do, identify the elements that undergo changes in oxidation ...

Solved • Aug 30, 2019

Redox Reactions

Q. What happens when you add zinc to a solution of copper sulfate? Identify the half reactions to see what got oxidized and reduced.

Solved • Aug 25, 2019

Redox Reactions

Q. In the reaction Mg(s) + 2HCl(aq) → MgCl 2(aq) + H2(g), what role does magnesium play?

Solved • Aug 7, 2019

Redox Reactions

Q. Complete and balance the following equations, and identify the oxidizing and reducing agents.Part AMnO4−(aq) + CH3OH(aq) → Mn2+(aq) + HCO2H(aq) (ac...

Solved • Aug 6, 2019

Redox Reactions

Q. In an oxidation-reduction reaction, the substance oxidized always a. shows a gain of electrons b. takes on oxygen atoms c. becomes a charged specie...

Solved • Aug 5, 2019

Redox Reactions

Q. HNO2 is an oxidizing agent or a reducing agent?

Solved • Aug 5, 2019

Redox Reactions

Q. In which reaction does the oxidation number of oxygen increase?a. Ba(NO3)2(aq) + K2SO4(aq) → BaSO4(s) + 2KNO3(aq)b. HCl(aq) + NaOH(aq) → NaCl(aq) +...

Solved • Aug 2, 2019

Redox Reactions

Q. Which element is reduced in this reaction?Cr2O72− + 3HNO2 + 5H+ → 2Cr3+ + 3NO3− + 4H2OEnter the chemical symbol of the element.

Solved • Jul 10, 2019

Redox Reactions

Q. 1. A beaker of nitric acid is neutralized with calcium hydroxide. Express your answer as a chemical equation. Identify all of the phases in your an...

Solved • Jul 10, 2019

Redox Reactions

Q. Complete and balance the following equations, and identify the oxidizing and reducing agents.Part ACr2O72−(aq) + I −(aq) → Cr 3+(aq) + IO3−(aq) (ac...

Solved • Jul 9, 2019

Redox Reactions

Q. For the given reactions, classify the reactants as the reducing agent, oxidizing agent, or neither.F2 + H2 → 2HF2Mg + O2 → 2MgODrag the appropriate...

Solved • Jul 9, 2019

Redox Reactions

Q. Which species is the oxidizing agent in the reaction shown? Fe(s) + PbCl2(aq) → FeCl2(aq) + Pb(s)a. ironb. lead(II) ionc. iron(II) iond. lead

Solved • Jul 9, 2019

Redox Reactions

Q. Titration of an acidic solution of Na2C2O4 with KMnO4(aq).The balanced chemical equation for this reaction is:16 H+(aq) + 2 MnO4-(aq) + 5 C2O42-(aq...

Solved • Jan 3, 2019

Redox Reactions

Q. Titration of an acidic solution of Na2C2O4 with KMnO4(aq). The balanced chemical equation for this reaction is: 16 H+(aq) + 2 MnO...

Solved • Jan 3, 2019

Redox Reactions

Q. What is the reducing agent in the following reaction?2 Br-(aq) + H2O2(aq) + 2 H+(aq)  →  Br2(aq) + 2 H2O(l)

Solved • Jan 3, 2019

Redox Reactions

Q. The Haber process is the principal industrial route for converting nitrogen into ammonia:N2 (g) + 3H2 (g)  →  2NH3 (g).What is being oxidized, and ...

Solved • Jan 3, 2019

Redox Reactions

Q. By using the data in Appendix E in the textbook, determine whether each of the following substances is likely to serve as an oxidant or a reductant...

Solved • Jan 3, 2019

Redox Reactions

Q. Hydrazine (N2H4) and dinitrogen tetroxide (N2O4) form a self-igniting mixture that has been used as a rocket propellant. The reaction products are ...

Solved • Jan 3, 2019

Redox Reactions

Q. S4O62−(aq) + 2I−(aq) ⟶ I2(s) + S2O32−(aq)        ΔG° = 87.8 kJ/mol(a) Identify the oxidizing and reducing agents.

Solved • Nov 30, 2018

Redox Reactions

Q. Identify the species oxidized, species reduced, and the oxidizing agent and reducing agent for all the reactions in the previous problem.(a) Al(s) ...

Solved • Nov 29, 2018

Redox Reactions

Q. Consider the following balanced redox reaction:16H+ (aq) + 2MnO4− (aq) + 10Cl − (aq) ⟶ 2Mn 2+ (aq) + 5Cl 2 (g) + 8H2O (l)(a) Which species is being...

Solved • Nov 27, 2018

Redox Reactions

Q. Potassium superoxide, KO2, is often used in oxygen masks (such as those used by firefighters) because KO2 reacts with CO2 to release molecular oxyg...

Solved • Nov 12, 2018

Redox Reactions

Q. Explain how a redox reaction involves electrons in the same way that an acid-base reaction involves protons.

Solved • Oct 31, 2018

Redox Reactions

Q. Give an example of a redox (noncombustion) reaction.

Solved • Oct 31, 2018

Redox Reactions

Q. Consider the reaction:Zn(s) + Fe2+(aq) → Zn2+(aq) + Fe(s)What is being reduced?

Solved • Oct 31, 2018

Redox Reactions

Q. Consider the reaction:Zn(s) + Fe2+(aq) → Zn2+(aq) + Fe(s)Which is the oxidizing agent?

Solved • Oct 31, 2018

Redox Reactions

Q. Indicate which reactions are redox reactions.(a) Hg2(NO3)2(aq) + 2 KBr(aq) → Hg2Br2(s) + 2 KNO3(aq)(b) 4 Al(s) + 3 O2(g) → 2 Al2O3(s)(c) CaO(s) + C...

Solved • Oct 31, 2018

Redox Reactions

Q. Identify which element is oxidized and which is reduced in the following reaction:4Al(s) + 3O2(g) → 2Al2O3(s)

Solved • Oct 31, 2018

Redox Reactions

Q. Use oxidation states to identify the element that is being reduced in the following redox reaction:Sn(s) + 4HNO3(aq) → SnO2(s) + 4NO2(g) + 2H2O(g)

Solved • Oct 31, 2018

Redox Reactions

Q. Indicate which reactions are redox reactions.(a) 2 Li(s) + Cl2(g) → 2 LiCl(s)(b) 2 Al(s) + 3 Sn2+(aq) → 2 Al3+(aq) + 3 Sn(s)(c) Pb(NO3)2(aq) + 2 Li...

Solved • Oct 31, 2018

Redox Reactions

Q. Identify the oxidizing agent and the reducing agent for the following reaction:2Al(s) + 3Sn2+(aq) → 2Al3+(aq) + 3Sn(s)

Solved • Oct 31, 2018

Redox Reactions

Q. Which of the following reactions are redox reactions?a. Al(s) + 3 Ag+(aq) → Al3+(aq) + 3 Ag(s)b. SO3(g) + H2O(l) → H2SO4(aq)c. Ba(s) + Cl2(g) → BaC...

Solved • Oct 31, 2018

Redox Reactions

Q. Sodium reacts with water according to the reaction:2 Na(s) + 2 H2O(l) → 2 NaOH(aq) + H2(g)Identify the oxidizing agent.

Solved • Oct 31, 2018

Redox Reactions

Q. Treatment of gold metal with BrF3 and KF produces Br2 and KAuF4, a salt of gold.Identify the oxidizing agent in this reaction.

Solved • Oct 31, 2018

Redox Reactions

Q. Identify the oxidizing agent and the reducing agent for 4Li(s) + O2(g) → 2Li2O(s).

Solved • Oct 31, 2018

Redox Reactions

Q. Identify the oxidizing agent and the reducing agent for Mg(s) + Fe2+(aq) → Mg2+(aq) + Fe(s).

Solved • Oct 31, 2018

Redox Reactions

Q. What happens to a substance when it becomes oxidized? Reduced?

Solved • Oct 31, 2018

Redox Reactions

Q. Many oxidation–reduction reactions can be balanced by inspection. Try to balance the following reaction by inspection and identify the substance re...

Solved • Oct 17, 2018

Redox Reactions

Q. Identify the atoms that are oxidized and reduced, the change in oxidation state for each, and the oxidizing and reducing agents in each of the foll...

Solved • Oct 17, 2018

Redox Reactions

Q. Identify the atoms that are oxidized and reduced, the change in oxidation state for each, and the oxidizing and reducing agents in each of the foll...

Solved • Oct 17, 2018

Redox Reactions

Q. Identify the atoms that are oxidized and reduced, the change in oxidation state for each, and the oxidizing and reducing agents in each of the foll...

Solved • Oct 17, 2018

Redox Reactions

Q. Classify the following as acid-base reactions or oxidation-reduction reactions:(e) K3P(s) + 2O2(g) ⟶ K3PO4(s)

Solved • Oct 17, 2018

Redox Reactions

Q. Determine if the following is an oxidation–reduction reaction, and identify the oxidizing agent, the reducing agent, the substance being oxidized, ...

Solved • Oct 17, 2018

Redox Reactions

Q. Silver can be separated from gold because silver dissolves in nitric acid while gold does not. Is the dissolution of silver in nitric acid an acid-...

Solved • Oct 17, 2018

Redox Reactions

Q. Identify the oxidizing and reducing agents in the following reactions:2 MnO4 −(aq) + 10 Cl−(aq) + 16 H+(aq) ⟶ 5 Cl2(g) + 2 Mn2+(aq) + 8 H2O(l)

Solved • Oct 13, 2018

Redox Reactions

Q. Identify the oxidizing and reducing agents in the following reactions:8 H+(aq) + 6 Cl−(aq) + Sn(s) + 4 NO3 −(aq) ⟶ SnCl6 2−(aq) + 4 NO2(g) + 4 H2O(l)

Solved • Oct 13, 2018

Redox Reactions

Q. Identify the oxidizing and reducing agents in the following reactions:5 H2C2O4 (aq) + 2 MnO4− (aq) + 6 H+ (aq) ⟶ 2 Mn2+(aq) + 10 CO2(g) + 8 H2O(l)

Solved • Oct 13, 2018

Redox Reactions

Q. Find the following electron-transfer reaction Pb (s) + Br2 (I) → Pb2+(aq) - 2Br (aq) The oxidation half reaction is: The reduction half reaction is:

Solved • Aug 28, 2018

Redox Reactions

Q. For the following electron-transfer reaction: I2 (s) + Zn (s) → 2I (aq) + Zn2+ (aq) The oxidation half reaction is: he reduction half reaction is:

Solved • Aug 28, 2018

Redox Reactions

Q. Cu2+(aq) + 2e → Cu(s) represents an oxidation half reaction.a. Trueb. False

Solved • Jul 24, 2018

Redox Reactions

Q. Which of the following would be the strongest reducing agent? A. fluorine, F B. lithium,Li C. bromine, Br D. carbon, C

Solved • Jul 17, 2018

Redox Reactions

Q. Identify the species oxidized, the species reduced, the oxidizing agent and the reducing agent in the following electron transfer reaction. 3Cl2 + ...

Solved • Jul 3, 2018

Redox Reactions

Q. In the following reaction, what is reduced? 2Al3+(aq) + 2Fe(s) → 2Al(s) + 3Fe2+(aq)a. Feb. Al3+c. Ald. Fe2+ Which of the following is the oxidizing...

Solved • Jun 26, 2018

Redox Reactions

Q. Which element is oxidized in the following reaction?MnO4- (aq) + H2C2O4 (aq) → Mn2+ (aq) + CO2 (g)

Solved • Jun 25, 2018

Redox Reactions

Q. Type the formula for the ion that forms when a neutral atom undergoes each of the changes. Click in the answer box to open the symbol palette. Neut...

Solved • Jun 25, 2018

Redox Reactions

Q. Which element is oxidized and which is reduced in the following reactions? Express your answers as chemical symbols separated by a comma. Enter the...

Solved • Apr 2, 2018

Redox Reactions

Q. Which element is oxidized and which is reduced in the following reaction? PbS(s) + 4H2O2(aq) → PbSO4(s) + 4H2O(l)Express your answer as chemical sy...

Solved • Mar 30, 2018

Redox Reactions

Q. Which element is oxidized and which is reduced in the following reaction? 3Fe(NO3)2(aq) + 2AI(s) → 3Fe(s) + 2AI(NO 3)3(aq)Express your answer as ch...

Solved • Mar 30, 2018

Redox Reactions

Q. Which element is oxidized and which is reduced in the following reaction? N2(g) + 3H2(g) → 2NH3(g) Express your answer as chemical symbols separate...

Solved • Mar 30, 2018

Redox Reactions

Q. Which of the following is the strongest reducing agent?a. Ca2+(aq)b. Li+(aq)c. Ca(s)d. Na(s)e. K(s)

Solved • Mar 29, 2018

Redox Reactions

Q. Which element is oxidized and which is reduced in the following reaction?PbS(s) + 4H2O2(aq) → PbSO4(s) + 4H2O(l)

Solved • Mar 23, 2018

Redox Reactions

Q. Which element is oxidized and which is reduced in the following reaction?Cl2(aq) + 2NaI(aq) → I 2(aq) + 2NaCl(aq)

Solved • Mar 23, 2018

Redox Reactions

Q. Which element is oxidized and which is reduced in the following reaction?3Fe(NO3)2(aq) + 2Al(s) → 3Fe(s) + 2Al(NO 3)3(aq)

Solved • Mar 23, 2018

Redox Reactions

Q. Which element is oxidized and which is reduced in the following reaction?N2(g) + 3H2(g) → 2NH3(g)

Solved • Mar 23, 2018

Redox Reactions

Q. Which element is reduced in this reaction?Cr2O72− + 3HNO2 + 5H+ → 2Cr3+ + 3NO3−+4H2OEnter the chemical symbol of the element.

Solved • Mar 23, 2018

Redox Reactions

Q. Which element is oxidized in this reaction? ZnO + C → Zn + CO 

Solved • Mar 23, 2018

Redox Reactions

Q. Which is reduced in the following reaction?Fe2O3 + 3 H2 → 2 Fe + 3 H2Oa. Fe2O3b. H2Oc. Fed. H2e. None of the above 

Solved • Mar 23, 2018

Redox Reactions

Q. Which element is the oxidizing agent in this reaction?ZnO+C→Zn+COEnter the chemical symbol of the element. 

Solved • Mar 22, 2018

Redox Reactions

Q. For the oxidation-reduction reaction equation given here, 4Al + 3O2 --> 2Al2O3 indicate how many electrons are transferred in the formation of...

Solved • Mar 21, 2018

Redox Reactions

Q. Which one of the following reactions is not an oxidation-reduction reaction?a. N2(g) + 3H2(g) → 2NH3(g)b. NH4NO2(s) → N2(g) + 2H2O(l)c. Cu(s) + 2Ag...

Solved • Mar 21, 2018

Redox Reactions

Q. Which of the following reactions would be classified as oxidation-reduction?a. 2Na(s) + Cl 2(g) → 2NaCl(s)b. Na(s) + CuCl(aq) → NaCl(aq) + Cu(s)c. ...

Solved • Mar 20, 2018

Redox Reactions

Q. Which one of the following is NOT a redox reaction?a. 2H2O2(aq) → 2H2O(l) + O2(g)b. 2 Al(s) + Fe2O3(s)→ Al2O3(s) + 2Fe(s)c. BaCl2(aq) +K2CrO4(aq) →...

Solved • Mar 20, 2018

Redox Reactions

Q. Which substance is the oxidizing agent in this reaction? 2CuO + C → 2Cu + CO2  

Solved • Mar 19, 2018

Redox Reactions

Q. Which element is reduced in this reaction?2KMnO4 + 3Na2SO3 + H2O → 2MnO2 + 3NaSO4 + 2KOH

Solved • Mar 16, 2018

Redox Reactions

Q. Identify the oxidizing agent and the reducing agent for the following reaction.Ag+ + Ti 3+ → Ag + Ti 4+a. Ag+ is the oxidizing agent and Ti 3+ is t...

Solved • Mar 16, 2018

Redox Reactions

Q. Identify the oxidizing agent and the reducing agent for the following reaction.C3H4 + 2H2 → C3H8a. C3H4 is the oxidizing agent and H2 is the reduci...

Solved • Mar 16, 2018

Redox Reactions

Q. Identify the oxidizing agent and the reducing agent for the following reaction.2H2S + SO2 → 3S + 2H 2Oa. H2S is the oxidizing agent and SO2 is the ...

Solved • Mar 16, 2018

Redox Reactions

Q. Identify the oxidizing agent and the reducing agent for the following reaction.N2 + 6Li → 2Li 3Na. N2 is the oxidizing agent and Li is the reducing...

Solved • Mar 16, 2018

Redox Reactions

Q. Which substance is the reducing agent in this reaction?2Cr(OH)3 + 3OCl− + 4OH− → 2CrO4−2 + 3Cl−+ 5H2OExpress your answer as a chemical formula.

Solved • Mar 16, 2018

Redox Reactions

Q. Choose the appropriate labels to their respective targets. Indicate whether a reactant is a reducing agent or an oxidizing agent. 

Solved • Mar 16, 2018

Redox Reactions

Q. Which element is oxidized in this reaction? FeO + CO → Fe + CO 2 Enter the chemical symbol of the element.  

Solved • Mar 15, 2018

Redox Reactions

Q. Which one of the following is not a redox reaction?a. 2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g)b. H2(g) + Cl2(g) → 2HCl(g)c. 2H2O2(aq) → 2H2O(l) + O2(g)...

Solved • Mar 15, 2018

Redox Reactions

Q. Which element is oxidized in this reaction?ZnO + C → Zn + CO

Solved • Mar 15, 2018

Redox Reactions

Q. Which element is reduced in this reaction?2KMnO4 + 3Na2SO3 + H2O → 2MnO2 + 3Na2SO4 + 2KOHEnter the chemical symbol of the element.

Solved • Mar 15, 2018

Redox Reactions

Q. Which element is reduced in this reaction?16H+ + 2Cr2O72- + C2H5OH → 4Cr3+ + 11H2O + 2CO2

Solved • Mar 14, 2018

Redox Reactions

Q. Which element is oxidized in this reaction?2CuO + C → 2Cu + CO 2

Solved • Mar 13, 2018

Redox Reactions

Q. Which element is reduced in this reaction?16H+ + 2Cr2O72- + C2H5OH → 4Cr3+ + 11H2O + 2CO2 

Solved • Mar 13, 2018

Redox Reactions

Q. Which substance is the oxidizing agent in this reaction?Fe2O3 + 3CO → 2Fe + 3CO 2Express your answer as a chemical formula. 

Solved • Mar 13, 2018

Redox Reactions

Q. Which one of the following is not a redox reaction?a. Al(OH)4-(aq) + 4H +(aq) → Al 3+(aq) + 4H 2O(l)b. C6H12O6(s) + 6O2(g) → 6CO2(g) + 6H2O(l)c. Na...

Solved • Mar 13, 2018

Redox Reactions

Q. Classify each of the following as a redox reaction or a non-redox reaction.Zn + CuCl2 → ZnCl2 + CuSO3 + H2O → H2SO4HCl + NaOH → H2O + NaCl2CO + O2 ...

Solved • Mar 13, 2018

Redox Reactions

Q. Determine whether each of the following changes represents oxidation or reduction.

Solved • Mar 12, 2018