Molecular hydrogen and molecular oxygen are burned in rockets (this was the fuel for the Space Shuttle's main engines). This reaction results in water being produced (in the form of super-heated steam) and an enormous amount of energy. The reaction is shown below.
2 H2 + O2 → 2 H2O
How many moles of H2 is 6.00 g of H2? How many moles of water are produced when 6.00 g of H2 react? How many grams of water are produced when 6.00 g of H2 react?