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When a small piece of copper metal is added to a silver nitrate solution, the following reaction occurs:
2Ag+NO3+Cu → Cu (NO3)2+2Ag

This equation both represents both a single replacement reaction AND a(n) _______ reaction.

A. combustion
B. decomposing
C. neutralization
D. oxidation-reduction

Answer :

ZJSG09112007

Explanation:

Copper is more reactive than silver.

When copper reacts with AgNO3, Cu displaces Ag from AgNO3, forming Cu(NO3)2.

Chemical reaction -

[tex]Cu + 2AgNO_3 = 2Ag + Cu(NO3)_2[/tex]

It's a displacement reaction as well as redox reaction.

Reasons are :

The Oxidation number of Cu changes from 0 to 2 so it's oxidized.

Oxidation number of Ag changes from 1 to 0 so it's reduced.

So, it's also a redox reaction.

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