Question

All of the following equations for the reaction between nitrogen, N2 and oxygen, O2 to produce dinitrogen pentoxide, N2O5 are balanced. However, which of them is normally chosen by convention to represent the balanced equation for this reaction?

Select one:

a. 12 N2 + 60 O2 --> 12 N2O5

b. 4 N2 + 10 O2 --> 4 N2O5

c. 10 N2 + 25 O2 --> 10 N2O5

d. 2 N2 + 5 O2 --> 2 N2O5

Answer 1

d)  2 N2 + 5 O2 --> 2 N2O5

Rule for balancing equation:

First put the correct coffecient before all the atoms on the right side .

Then balance the left coffecient to right coffecient.

b ) and (c) are also correct but best method for a balanced equation is to take smallest integer as coffecient for all particles.