Decide whether a chemical reaction happens in either of the following situations

Question

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.

A strip of solid lead metal is put into a beaker of 0.065M Cu(NO3)2 solution.

A strip of solid copper metal is put into a beaker of 0.096M Pb(NO3)2solution.

A strip of solid lead metal is put into a beaker of 0.065M Cu(NO3)2 solution.

A strip of solid copper metal is put into a beaker of 0.096M Pb(NO3)2solution.

Explanation / Answer

The first reaction will occur as

2Pb + Cu(NO3)2 ---> 2PbNO3 + Cu

The reaction is double replacement reaction where Pb replaces Copper from its salt.

The second reaction is not possible.

Because, Cu lies above Pb in the activity series , so copper is unable to replace lead from its salt.

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