14. When solid iron reacts with air to produce solid iron (II) oxide, which of the following can be said ofoxygen's role in this reaction?2Fe(s) + O2(g)2FEO(s)It is a bufferIt is oxidizedIt is the oxidizing agentIt is the reducing agentIt is a spectator ionа.d.b.е.с.It is reducedf.15. What is the cell potential of a standard galvanic cell using copper and aluminum?а.-2.00 Vd.+1.32 Vb.-1.32 Vе.+1.66 VС.+0.34 Vf.+2.00 V16. Within which of the following formal lab report sections should the reason for conducting the experimentbe made clear to the reader?a. Dedicationd.Observationsb. Introductionе.Analysesc. Proceduref.References17. Within which of the following formal lab report sections should the researcher outline their owninferences about the data to the reader?a. Dedicationd. Observationsb. Introductione. Analysesc. Proceduref.References

14. When solid iron reacts with air to produce solid iron (II) oxide, which of the following can be said of oxygen's role in this reaction? 2Fe(s) + O2(g) → 2FEO(s) It is the oxidizing agent It is the reducing agent It is a spectator ion а. It is a buffer d. b. It is oxidized е. с. It is reduced f.

14. When solid iron reacts with air to produce solid iron (II) oxide, which of the following can be said of oxygen's role in this reaction? 2Fe(s) + O2(g) → 2FEO(s) It is the oxidizing agent It is the reducing agent It is a spectator ion а. It is a buffer d. b. It is oxidized е. с. It is reduced f.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

32
Consider the reaction below. Which is the oxidizing agent? * Fe + O₂ + H+ Fe+2+ H₂O. A. Fe B. 02 C. Fe+2 D. H2O From the given reaction, what is the oxidation number of O2? * Fe + 02 → Fe2O3 O A. -2 OB.-1 O C.0 O D. +1
10. In the reaction, Fe203(s) + 3CO(g) 2Fe(l) + 3C02(g) --- a. carbon monoxide is reduced c. carbon monoxide is the oxidizing agent L b. iron(III) oxide is oxidized d. iron(III) oxide is the oxidizing agent
For each of the following reactions, identify the elements that are oxidized and reduced, the oxidizing and reducing agents, and how many moles of electrons are transferred in the overall reaction. a. 4Fe(s) + 302(g) → 2Fe2O3(s) b. 2Ag(s) + H2S(g) → Ag2S(s) + H2(g) c. 2 Al(s) + 3 CuCl2(aq) → 2 AlCl3(aq) + 3 Cu(s) d. 2NaHCO3(s) → Na2CO3(s) + H20(1) + CO2(g) e. CH4(g) + 2 02(g) → CO2(g) + 2H2O(1)
A. +2 13. In the reaction, 2H₂ (g) + O₂ (g) → 2H₂O (g), which of the following is the oxidizing agent? C. H₂O B. 0₂ A. H₂ D. None of the choices 14. In the reaction, 2H₂ (g) + O₂(g) → 2H₂O (g), which of the following is the reducing agent? C. H₂O A. H₂ B. 02 D. None of the choices 15. What are the original and final oxidation numbers for iron in the smelting of iron from iron oxide? Fe2O3(s) + 3CO(g) → 2Fe(s) + 3C02(g) C.0 +2 A. +2 0 B. +3-0 D. No change 16. A reducing agent reduces other substances and loses electrons; therefore, its oxidation state will C. stay the same B. increase A. decrease ? D. none of the choices 17. A monoatomic ion has an oxidation state equal to its charge. What is the oxidation state of Ca²+? A. +2 B. +1 C.0 D.-2 18. In the reaction, Fe2O3 (1) + CO (g) → Fe (I) + CO2 (g), how many electrons does Fe gain? A. 1 B. 2 C. 3 D. 4 19. In the reaction, Fe2O3 (1) + CO (g) → Fe (1) + CO2 (g), how many electrons does Fe gain? A. 1 B. 2 C. 3 D. 4 20. Which of the…
What are the oxidation number of hydrogen in H₂O and H₂O2 molecules respectively? A. + 1 B. -1 C. -1 and +1 D. +1 and -2 O a. + 1 and -1 O b.-2 O c. +2 O d. +1 and -2
1. Consider the following Redox reaction, 2+ 2Ag" (aq) + Cu(s) → 2Ag(s) + Cu“ (aq) The oxidizing agent is Select one: а. Cu b. Ag с. Ag +2 d. Cu
46. ** Questions # 43 through # 48 use the half reaction method to balance the following skeletal reaction in an acid. Fe (s) + NO3- (aq) → Fe3+ (aq) + N2 (g) For the half reaction with nitrate, how many hydrogen ions are in the balanced half reaction, and on which side of the reaction? Select one: a. 3 on the reactant side b. none of these c. 12 on the reactant side d. 12 on the product side e. 6 on the reactant side f. 3 on the product side g. 1 on the reactant side h. 6 on the product side i. 1 on the product side
For the following Oxidation/Reduction reactions, show which element is oxidized and which is reduced. 3. Cr2O3 Cr + O2 a. b. CaSO3 + Fe FeSO3 Са с. Sn3N2 Fel3 SnI4 Fe3N2 d. Al2O3 N2 AIN + O2 page 2 + C.
Determine the oxidation number of the underlined element. A. NaSO3 B. NO2 C. OCl2
b. 2 SO2(9) + 2 H2O(g) → 2 H2S(g) + 3 02(g) element being reduced: [ Select ] oxidation number on the reactant side: [ Select ] oxidation number on the product side: [ Select ] element being oxidized [ Select ] oxidation number on the reactant side [ Select ] oxidation number on the product side [ Select ] c. 3 Na2S(s) + 8 H* (aq) + 2 NO3 (aq) → 6 Na*(ag) + 3 S(s) + 2 NO(9) + 4 H2O1) element being reduced: [ Select ] oxidation number on the reactant side: [ Select ] oxidation number on the product side: [ Select ] element being oxidized [ Select ] oxidation number on the reactant side [ Select ] oxidation number on the product side [ Select ]
In which two compounds does nitrogen have the same oxidation number? N₂O3 and HNO3 N₂O5 and HNO3 NO₂ and N₂03 N₂O4 and HNO2 HNO2 and NH3 A. B. C. D. E.