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Precipitate pbno32aq 2 kiaq 2 kno3aq pbi2s pbi bacl2aq

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Unformatted text preview: s insoluble. insoluble. Precipitation Reactions The “driving force” is the formation of an insoluble solid called a precipitate. precipitate Pb(NO3)2(aq) + 2 KI(aq) → 2 KNO3(aq) + PbI2(s) PbI BaCl2(aq) + Na2SO4(aq) → BaSO4(s) + 2 NaCl(aq) BaSO Precipitates are determined from the solubility rules. Precipitation Reactions Which species is the precipitate? Pb(NO3)2(?) + 2KI(?) → 2KNO3(?) + PbI2(?) Precipitation Reactions Which species is the precipitate? Which Pb(NO3)2(?) + 2KI(?) → 2KNO3(?) + PbI2(?) From the solubility rules: All nitrate salts are soluble, therefore: All potassium salts are soluble, therefore: By the solubility rules: PbI2 is the ppt. Pb(NO3)2(aq) + 2KI(aq) → 2KNO3(aq) + PbI2(s) Net Ionic Equations Net Molecular Equation: all species listed as formula units or in Molecular molecular form. reactants → products •Note all states of each reactant or product by: (s), (l), (g) or (aq) Ionic Equation: All soluble (aq) species present are listed as ions. •Leave all (s), (l) or (g) species as is....
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