A reaction between hydrazine, N2H4, and dinitrogen tetroxide, N2O4, has been used to launch rockets into space. The reaction produces nitrogen gas and water vapor. a. Write a balanced chemical equation for this reaction. b. What is the mole ratio of N2O4 to N2? c. How many moles of N2 will be produced if 20 000 mol of N2H4 are used by a rocket? d. How many grams of H2O are made when 450. kg of N2O4 are consumed?