Exercise - Using conservation principles, write stoichiometric relationships for the following: 1. The precipitation of Mg2+ as Mg2P207 2. The acid-base reaction between CaCO3 and HCI in which H2CO3 is formed 3. The reaction between AgCl and NH3 to form Ag(NH3)2 + 4. The redox reaction between Cr207 2- and Fe2+ to form Cr3+ and Fe3+

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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".