I need confimation that I have correctly balanced the equation, appropriate oxid

Question

I need confimation that I have correctly balanced the equation, appropriate oxidation states, and corresponding losing/gaining electrons. I appreciate your time & effort!

A.

Ox #:

0         +2 +5 -2          +2     -1     0

2Mg + Zn(NO3)2 -->    2Mg(No3) + Zn

Losing: Mg loses electrons when it goes from 0 to a +2 charge.

Gaining: Zn gains electrons when it goes from +2 to 0.

Ox #:

0         +2 +5 -2           +2     -1        0

2Mg + Cu (NO3)2 -->   2Mg(No3) + Cu

Losing: Mg loses electrons when it goes from 0 to a +2 charge.

Gaining: Cu gains electrons when it goes from +2 to 0.

Ox #:

   0       +2 +5 -2         +2      -1      0

2Mg + Pb(NO3)2 --> 2Mg(No3) + Pb

Losing: Mg loses electrons when it goes from 0 to a +2 charge.

Gaining: Pb gains electrons when it goes from +2 to 0.

Thank you! (:

Explanation / Answer

Mg + Zn(NO3)2= Mg(NO3)2 + Zn

Mg + Cu(NO3)2 = Mg(NO3)2 + Cu

Mg + Pb(NO3)2= Mg(NO3)2 + Pb

So, you got the electron loss/gain and oxidation states correct, but not the balancing.

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