The Zn half is:
Zn ==> Zn^+2 + 2e
The NO3^- half is"
10H^+ + 8e + 2NO3^- ==> N2O + 5H2O
Multiply the Zn half by 4, the NO3^- half by 1 and add the two equations.
I have 5 for H2O also.
If you will type your equation in I will tell you why it is wrong. I know you can look at your answer and compare it with mine and see where the coefficients are not the same; however, it is possible to balance the equation atom for atom and even electron for electron and NOT be balanced.
The redox reaction below occurs in acidic solution. Balance it with the smallest whole number coefficients and determine the coefficient for H2O.
Zn(s) + NO3-(aq) ---> Zn2+(aq) + N2O(g)
i got 4 as the coefficient for water, but the answer says that it is 5
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