An astronaut has been stranded on Mars, and he needs to make water to survive. He knows that he can combine his fuel (which is hydrogen gas with oxygen to make water according to the equation below. He has lots of fuel. but not so much oxygen. How many grams of oxygen will he need to use in order to make the 54.87 grams of water that

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".