1. Balance the following equations, and classify each as eitherprecipitation, ac

Question

1. Balance the following equations, and classify each as eitherprecipitation, acid-base, or oxidation-reduction.
a. _____NaNO3 ? _____NaNO2 + ____O2 _____________________
b. _____N2 + ____H2 ? ___NH3 _____________________
c. ____BaCl2 + ____AgNO3 ? ____AgCl + ____Ba(NO3)2___________________

Explanation / Answer

a. 2NaNO3 -> 2NaNO2 + O2    here oxidation number of N in NaNO3 is x-6+1 = 0                                                               x = +5 and oxidation number of N in NaNO2 is x - 4+1 = 0                                                              x= +3 so here N gains electrons so its oxidation-reaction reaction. b. N2 + 3H2 --> 2NH3 here NH3 is having lone pair of electrons so in concept of Lewisbase it acts as base so its acid base reaction. c. BaCl2 + 2AgNO3 --.>2AgCl +Ba(NO3)2 here AgCl is left out which is white precipitate so itsprecipitation reaction.

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