For each chemical reaction listed in the table below, decide whether the highlighted atom is being oxidized or reduced. highlighted atom is being... reaction neither oxidized nor reduced oxidized reduced H,S(aq)+2 N2OH(aq)Na, S(aq)+2 H,O(1) N2(9)+3 H2(9) → 2 NH3(9) P4(s)+5 O2(9)+6 H,O1) → 4 H,PO4(aq) CO(+H2O(g) → CO2(9)+H»(g) I Don't Know Submit 02020 McGraw- Spectroscopy....pdf 0SMOSIS 55 MAY 15

For each chemical reaction listed in the table below, decide whether the highlighted atom is being oxidized or reduced. highlighted atom is being... reaction neither oxidized nor reduced oxidized reduced H,S(aq)+2 N2OH(aq)Na, S(aq)+2 H,O(1) N2(9)+3 H2(9) → 2 NH3(9) P4(s)+5 O2(9)+6 H,O1) → 4 H,PO4(aq) CO(+H2O(g) → CO2(9)+H»(g) I Don't Know Submit 02020 McGraw- Spectroscopy....pdf 0SMOSIS 55 MAY 15

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

Chapter18: Electrochemistry

Section: Chapter Questions

Problem 127AE: One of the few industrial-scale processes that produce organic compounds electrochemically is used...

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Xenon trioxide, XeO3, reacts with aqueous base to form the xenate anion, HXeO4. This ion reacts further with OH to form the perxenate anion, XeO64, in the following reaction: 2HXeO4(aq)+2OH(aq)XeO64(aq)+Xe(g)+O2(g)+2H2O(l) Identify the elements that are oxidized and reduced in this reaction. You will note that the equation is balanced with respect to the number of atoms on either side. Verify that the redox part of this equation is also balanced, that is, that the extents of oxidation and reduction are also equal.
4.25 When octane is combusted with inadequate oxygen, carbon monoxide may form. If 100 g of octane is burned in 200 g of O2, are conditions conductive to forming carbon monoxide?
87. What volume of 0.151 N NaOH is required to neutralize 24.2 mL of 0.125 N H2SO4? What volume of 0.151 N NaOH is required to neutralize 24.2 n1L of 0.125 M H2SO4?
The Ostwald process for the commercial production of nitric acid involves the Following three steps: 4NH3(g)+5O2(g)4NO(g)+6H2O(s)2NO(g)+O2(g)2NO2(g)3NO2(g)+H2O(l)2HNO3(aq)+NO(g) a. Which reaction in the Ostwald process are oxidation-reduction reactions? b. Identify each oxidizing agent and reducing agent.
Ethanol, C2H5OH, is a gasoline additive that can be produced by fermentation of glucose. C6H12O62C2H5OH+2CO2 (a) Calculate the mass (g) of ethanol produced by the fermentation of 1.000 lb glucose. (b) Gasohol is a mixture of 10.00 mL ethanol per 90.00 mL gasoline. Calculate the mass (in g) of glucose required to produce the ethanol in 1.00 gal gasohol. Density of ethanol = 0.785 g/mL. (c) By 2022, the U. S. Energy Independence and Security Act calls for annual production of 3.6 1010 gal of ethanol, no more than 40% of it produced by fermentation of corn. Fermentation of 1 ton (2.2 103 lb) of corn yields approximately 106 gal of ethanol. The average corn yield in the United States is about 2.1 105 lb per 1.0 105 m2. Calculate the acreage (in m2) required to raise corn solely for ethanol production in 2022 in the United States.
Nickel(II) sulfide, NiS, occurs naturally as the relatively rare mineral millerite. One of its occurrences is in meteorites. To analyze a mineral sample for the quantity of NiS, the sample is dissolved in nitric add to form a solution of Ni(NO3)2. NiS(s) + 4 HNO3(aq) Ni(NO3)2(aq) + 2 NO2(g) + 2 H2O(l) + S(s) The aqueous solution of Ni(NO3)2 is then reacted with the organic compound dimethylglyoxime (C4H8N2O2) to give the red solid Ni((C4H7N2O2)2. Ni(NO3)2(aq) + 2 (C4H8N2O2)(aq) Ni(C4H7N2O2)2 + 2 HNO3(aq) Suppose a 0.468-g sample containing millerite produces 0.206 g of red, solid Ni(C4H7N2O2)2 What is the mass percent of NiS in the sample?
In the following reaction, which element in what species is oxidized? C,H, (g) + 3 0, (g) → 2 CO, (g) + 2 H,0 (g)
What type of reaction is the following? Br₂(g) + Nal(aq) → 2NaBr(aq) + 1₂(g) Combination Decomposition Double Replacement Single Replacement
Which substance is the oxidizing agent and which is the reducing agent? 3NO2(g) + H₂O → NO(g) + 2H+ (aq) + 2NO3(aq). ->> H₂O is the reducing agent ONO is the oxidizing agent OH is the oxidizing agent ONO is the reducing agent ONO₂ is the reducing agent NO3 is the reducing agent ONO₂ is the oxidizing agent H₂O is the oxidizing agent ONO3 is the oxidizing agent OH is the reducing agent UU
What type of Reaction is this? Al + Cu(SO4) --- > Al2(SO4)3 + Cu O Single Replacement O Double Replacement O Synthesis
In the following reaction, which species is being (i) reduced and which one is being (ii) oxidized? 3Ag*(aq) + Al(s) → 3Ag(s) + Al3+(aq)
Decomposition Reactions Carbon Reduction Reactions 2 Ag₂O(s)→ 4 Ag(s) + O₂(g) 2 MgO(s) → 2 Mg(s) + O₂(g) 2 Al₂O3(s) → 4 Al(s) + 3 O₂(g) 2 Fe₂O3(s)- 4 Fe(s) + 3 O₂(g) 2 HgO(s) → 2 Hg(1) + O₂(g) 2 Cr₂O3(s) → 4 Cr(s) + 3 O₂(g) Temperature Clear Graph 300 K AH° AS° (kJ) (J/K.mol) +62.2 +132.7 +1202.4 +216.7 +3351.4 +546.8 +1648.4 +551.5 +181.7 +2269.4 +286.8 +548.4 AG°(kJ) -1000 0 1000 2000 3000 300 Temperature (K) 2000 The metals Mg and Al, like most metals in groups 1A, 2A, and 3A of the periodic table, cannot be obtained by chemical reduction with carbon at reasonable temperatures. What process is used to obtain these metals from their ores?

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