Question

Balance the equation H4N2O3 --> N2 + H2O.

a) Add 4 H2O to the left side.
b) Add 3 N2 to the right side.
c) Add 3 H2O to the right side.
d) Add 4 N2 to the left side.

Answer 1

To balance the equation H4N2O3 --> N2 + H2O, you need to add 4 H2O on the left and 4 N2 on the right.

Step-by-step explanation:

To balance the equation H4N2O3 --> N2 + H2O, you need to add 4 H2O to the left side (option a). This is because there are 4 oxygen atoms on the right side, so you need 4 water molecules to balance them.

By adding the 4 H2O molecules on the left side, you now have 8 hydrogen atoms on the left side. To balance this, you can add 4 N2 molecules on the right side (option d), because each N2 molecule has 2 nitrogen atoms and 4 hydrogen atoms which will balance out the equation.

Therefore, the balanced equation is H4N2O3 --> 4 N2 + 4 H2O.