Copper Plated
July 18th, 2011
silver is plated on copper by immersing a piece of copper into a solution containing silver (I) ions.?
in the plating reaction, copper
1. is oxidized and is the reducing agent
2. is oxidized and is the oxidizing agent
3. is reduced and is the reducing agent
4. is reduced andis the oxidizing agent
#1. Because:
The reaction is 2AgNO3 + Cu = Cu(NO3)2 + 2Ag
Copper goes from zero to +2. So, copper is oxidized because its oxidation number goes up. And, a material that becomes oxidized is a reducing agent.
Silver goes from +1 to zero. Silver is reduced because its oxidation number goes down. And, a material that becomes reduced is an oxidizing agent.
COPPER PLATING A QUARTER