`N_(4)H_(4)+2H_(2)O_(2)toN_(2)+4H_(2)O`
The mixtures of `N_(2)H_(4)` and `H_(2)O_(2)` ( in the presence of `Cu(II)` catalysts ) is used as a rocket propellants because of two reasons:
a. the reaction is highly exothermic.
b large volume of gases are envolved.