1. Write balanced net ionic equations to explain the observations in the options assigned byyour instructor. (All reactions are oxidation-reduction.) See the protocol on page 192.a) Option ECuesb) Option F OPTIONS1.A. Some aqueous iron(II) sulfate is treated with granulated (solid) zinc.B. A piece of aluminum metal appears to dissolve in hydrochloric acid solution withevolution of gas bubblesgas.C. Hot iron wire appears to "burn" when placed in a flask containing ONLY chlorineD. When aqueous potassium dichromate is added to an acidic solution of iron(II)sulfate, the orange color of the potassium dichromate solution changes to blue or blue-green,indicating the formation of Cr³+E. Copper wire dissolves in concentrated nitric acid evolving nitrogen oxide gas.F. In areas where there is a high content of manganese (Mn2+) in tap water, a browndeposit of manganese(IV) oxide will often appear on porcelain after the water in theporcelain has been exposed to air for several days (HINT: Think about the majorcomponents of air.)

Answered: 1. Write balanced net ionic equations…

1. Write balanced net ionic equations to explain the observations in the options assigned by your instructor. (All reactions are oxidation-reduction.) See the protocol on page 192. a) Option E

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter18: Introduction To Electrochemistry

Section: Chapter Questions

Problem 18.7QAP

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Concept explainers

Redox Reactions

Redox reactions are considered to be the chemical reactions involving both oxidation and reduction processes. They are actually oxidation-reduction reactions. The term redox is made from two words where “red” comes from reduction and “ox” comes from oxidation. During a redox reaction electron transfer takes place in such a way that one chemical compound gets reduced and the other one gets oxidized.

Question

1. Write balanced net ionic equations to explain the observations in the options assigned by
your instructor. (All reactions are oxidation-reduction.) See the protocol on page 192.
a) Option E
Cues
b) Option F

OPTIONS
1.
A. Some aqueous iron(II) sulfate is treated with granulated (solid) zinc.
B. A piece of aluminum metal appears to dissolve in hydrochloric acid solution with
evolution of gas bubbles
gas.
C. Hot iron wire appears to "burn" when placed in a flask containing ONLY chlorine
D. When aqueous potassium dichromate is added to an acidic solution of iron(II)
sulfate, the orange color of the potassium dichromate solution changes to blue or blue-green,
indicating the formation of Cr³+
E. Copper wire dissolves in concentrated nitric acid evolving nitrogen oxide gas.
F. In areas where there is a high content of manganese (Mn2+) in tap water, a brown
deposit of manganese(IV) oxide will often appear on porcelain after the water in the
porcelain has been exposed to air for several days (HINT: Think about the major
components of air.)

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