12. KNO3 --> KNO2 + O2 What coefficients are needed to balance the reaction? O 1, 2, 2 O 2, 2, 1 O 2, 3, 2 O 1,3, 1

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A: Ksp for PbS 3.2 x 10-28 Ksp for PbSO4 = 1.8 * 10-8 Ksp for PbCrO4 = 1 * 10-16

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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".