Made and broken bonds (Please Help for homework)

Question

Types of broken bonds in the equation:

4C₇H₅N₃O₆ + 21O₂ --> 28CO₂ + 10H₂O + 6N₂

Answer 1

Tricky because not sure of the exact structure of the C7H5N3O6, but assuming it is tri-nitro-tolune, then you would have the following bonds broken per molecule. You will then have to multiply by 4 since there are 4 molecules of TNT in the equation. In the TNT molecule, you have the following bonds being broken per TNT molecule...

4 C-C bonds

3 C=C bonds

5 C-H bonds

3 C-N bonds

3 N-O bonds

3 N=O bonds

Then there will be 21 O=O bonds that will have to be broken.