D.no as conflict were not considered
Answer: remove a H2 molecule from the left side of the equation
Explanation:
Halogens (atoms with 7 valence electrons) and Hydrogen
or generally, atoms with their shells almost full
In diesel engines, the chemical energy in the fuel is changed to heat energy, causing the pistons to expand via mechanical energy. The mechanical energy is finally converted to kinetic energy, which is observed as the movement of the vehicle.
The answer is the 3rd one down I think