Question
Asked Dec 1, 2019
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Decide whether a chemical reaction happens in either of the following situations. If a reaction does happen, write the chemical equation for it. Be sure your
chemical equation is balanced and has physical state symbols.
chemical
reaction?
chemical equation
situation
A strip of solid silver
metal is put into a beaker
of 0.020M Pb(NO3)2
solution
yes
no
A strip of solid lead metal
is put into a beaker of
0.098M AgNo3 solution.
yes
no
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Decide whether a chemical reaction happens in either of the following situations. If a reaction does happen, write the chemical equation for it. Be sure your chemical equation is balanced and has physical state symbols. chemical reaction? chemical equation situation A strip of solid silver metal is put into a beaker of 0.020M Pb(NO3)2 solution yes no A strip of solid lead metal is put into a beaker of 0.098M AgNo3 solution. yes no

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Expert Answer

Step 1

In electrochemical series, the metal that has less standard reduction electrode potential or more negative reduction potential can displace the other metals cations from their aqueous solution.

The standard reduction potential of Silver (Ag) is +0.80 V.

The standard reduction potential of Lead (Pb) is -0.13 V.

Step 2

a) given, a strip of solid silver metal is put into a beaker of Pb(NO3)2 :

For this situation, silver has higher or positive standard reduction potential than lead. So, silver metal will not displace lead cations from the solution. Therefore, the chemical reaction does not happen.

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Ag (s) Pb(NOs)2 (aq) -- No reaction

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Step 3
  1. b) given, a strip of solid lead metal is put into a beaker of AgNO3 :

For this situation, lead has lower or negative standard reduction potential than silver. So, lead metal ...

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Pb (s) 2 AgNO3 (aq) Pb(NO3)2 (aq) +2 Ag (s)

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Redox Reactions

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