Two Types of Metathesis

• precipitation: an insoluble salt formsBa(OH)2(aq) + Na2SO 4(aq) = BaSO4(s) + 2 NaOH(aq)

• neutralization: H+ changes partnersHC2H3O2(aq) + NaOH(aq) = H2O(l) + NaC2H3O2(aq)

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Demonstration: Do Ba(OH)2 + H2SO4 reaction with a conductivity apparatus.