4. When a 19.34 gram piece of lithium is placed in a sample of water, how many grams of hydrogen gas are? 2 Li () + 2 H,Ou 2 LİOH(aq) + H2«2) + H2«g)

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Q: CHy HyC Br Br CH2

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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".