pls help asap 7. Stainless steel is an alloy that combines iron witha. carbonb. chromiumc. tind. copper8. Which of the following metals is most easily oxidized?a. Leadb. Goldc. Magnesiumd. Copperto inhibit rusting.

7. Stainless steel is an alloy that combines iron with __________ to inhibit rusting. Correct…

Answered: 7. Stainless steel is an alloy that…

Living By Chemistry: First Edition Textbook

1st Edition

ISBN:9781559539418

Author:Angelica Stacy

Publisher:Angelica Stacy

ChapterU5: Fire: Energy , Thermodynamics, And Oxidation-reduction

SectionU5.18: The Active Life: Activity Of Metals

Problem 1TAI

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Substances A2, B2, and C2 can all act as oxidizing agents. In solution, A2 is green, B2 is yellow, and C2 is red. In the reactions in which they participate, they are reduced to A, B, and C ions, all of which are colorless. When a solution of C2 is mixed with one containing B ions, the color changes from red to yellow. Which species is oxidized? __________ Which is reduced? __________ When a solution of C2 is mixed with one containing A ions, the color remains red. Is C2 a better oxidizing agent than A2? __________ Is C2 a better oxidizing agent than B2? __________ Arrange A2, B2, and C2 in order of increasing strength as an oxidizing agent. ___________________ _______________ ______________ weakest oxidizing agentstrongest oxidizing agent
. Balance each of the following oxidation-reduction reactions, which take place in acidic solution. a.MnO4(aq)+H2O2(aq)Mn2+(aq)+O2(g)b.BrO3(aq)+Cu+(aq)Br(aq)+Cu2+(aq)c.HNO2(aq)+I(aq)NO(g)+I2(aq)
Suppose you have three different metals. A, B, and C. When metals A and B come into contact. B confides and A does not corrode. When metals A and C come into contact, A corrodes and C does not corrode. Based on this information, which metal corrodes and which metal does not corrode when B and C come into contact?
Electrochemical Cells II Consider this cell running under standard conditions: Ni(s)Ni2(aq)Cu+(aq)Cu(s) a Is this cell a voltaic or an electrolytic cell? How do you know? b Does current flow in this cell spontaneously? c What is the maximum cell potential for this cell? d Say the cell is connected to a voltmeter. Describe what you might see for an initial voltage and what voltage changes, if any, you would observe as time went by. e What is the free energy of this cell when it is first constructed? f Does the free energy of the cell change over time as the cell runs? If so, how does it change?
. Consider the oxidation—reduction reaction Zn(s)+Pb2+(aq)Zn2+(aq)+Pb(s)Sketch a galvanic cell that uses this reaction. Which metal ion is reduced? Which metal is oxidized? What half-reaction takes place at the anode in the cell? What half-reaction takes place at the cathode?
Complete and balance the following oxidation-reduction reactions, which give the highest possible oxidation state for the oxidized atoms. (a) Al(s)+F2(g) (b) Al(s)+CuBr2(aq) (single displacement) (c) P4(s)+O2(g) (d) Ca(s)+H2O(l) (products are a strong base and a diatomic gas)
Consider the following half-reactions: Explain why platinum metal will dissolve in aqua regia (a mixture of hydrochloric and nitric acids) but not in either concentrated nitric or concentrated hydrochloric acid individually.
Complete and balance each of the following half-reactions (steps 25 in half-reaction method): (a) Cr2+(aq)Cr3+(aq) (b) Hg(l)+Br(aq)HgBr42(aq) (c) ZnS(s)Zn(s)+S2(aq) (d) H2(g)H2O(l) (in basic solution) (e) H2(g)H3O+(aq) (in acidic solution) (f) NO3(aq)HNO2(aq) (in acidic solution) (g) MnO2(s)MnO4(aq) (in basic solution) (h) Cl(aq)ClO3(aq) (in acidic solution)

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7. Stainless steel is an alloy that combines iron with a. carbon b. chromium c. tin d. copper 8. Which of the following metals is most easily oxidized? a. Lead b. Gold c. Magnesium d. Copper to inhibit rusting.