UPLOAD Alka Seltzer Repo X General Chemistry 1 Lab M x 9 UPLOAD Density Report: M X What Kind of Reac 671?module_item_id%3D9934003 otx - 5.pptx (48.7 MB) Oxidation-Reduction Reactions Indicate the oxidation state of each element in the following: Mn, K,S, Mn²+, Sg, Mn,O3, SO2, MnO2, SO3, KMNO4, SO,², MnO, , Na,SO,, Na,S,O, Indicate whether or not the following reactions are redox reactions. If they are, identify the species that is (1) oxidized, (2) reduced, (3) the oxidizing agent, (4) the reducing agent. (balance the equations first – write net ionic equations if necessary) a. Mg(s) + H,0(1) → Mg(OH),(aq) + H2(g) b. Al(s) + Sn²*(aq) → Al3*(aq) + Sn(s) c Lifs) CL(a)

UPLOAD Alka Seltzer Repo X General Chemistry 1 Lab M x 9 UPLOAD Density Report: M X What Kind of Reac 671?module_item_id%3D9934003 otx - 5.pptx (48.7 MB) Oxidation-Reduction Reactions Indicate the oxidation state of each element in the following: Mn, K,S, Mn²+, Sg, Mn,O3, SO2, MnO2, SO3, KMNO4, SO,², MnO, , Na,SO,, Na,S,O, Indicate whether or not the following reactions are redox reactions. If they are, identify the species that is (1) oxidized, (2) reduced, (3) the oxidizing agent, (4) the reducing agent. (balance the equations first – write net ionic equations if necessary) a. Mg(s) + H,0(1) → Mg(OH),(aq) + H2(g) b. Al(s) + Sn²(aq) → Al3(aq) + Sn(s) c Lifs) CL(a)

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter6: Types Of Chemical Reactions And Solution Stoichiometry

Section: Chapter Questions

Problem 86E: Specify which of the following equations represent oxidationreduction reactions, and indicate the...

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Specify which of the following equations represent oxidation reduction reactions, and indicate the oxidizing agent, the reducing agent, the species being oxidized, and the species being reduced. a. CH4(g)+H2O(g)CO(g)+3H2(g) b. 2AgNO3(aq)+Cu(s)Cu(NO3)2(aq)+2Ag(s) c. Zn(s)+2HCl(aq)ZnCl2(aq)+H2(g) d. 2H+(aq)+2CrO42-(aq)Cr2O72-(aq)+H2O(l)
Gold can be dissolved from gold-bearing rock by treating the rock with sodium cyanide in the presence of oxygen. 4 Au(s) + 8 NaCN(aq) + O2(g) + 2 H2O() 4 NaAu(CN)2(aq) + 4 NaOH(aq) (a) Name the oxidizing and reducing agents in this reaction. What has been oxidized, and what has been reduced? (b) If you have exactly one metric ton (1 metric ton = 1000 kg) of gold-bearing rock, what volume of 0.075 M NaCN, in liters, do you need to extract the gold if the rock is 0.019% gold?
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