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Chemistry 112. Reactions in Aqueous Solutions. Net Ionic Equations. Ionic compounds dissociate or separate into ions when they are in solution A net ionic equation can be written to show dissolved ionic compounds as dissociated free ions
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Chemistry 112 Reactions in Aqueous Solutions
Net Ionic Equations Ionic compounds dissociate or separate into ions when they are in solution A net ionic equation can be written to show dissolved ionic compounds as dissociated free ions AgNO3(aq) + NaCl(aq)→ AgCl(s) + NaNO3(aq) Ag+(aq) + NO3-(aq)+ Na+(aq) + Cl-(aq)→ AgCl(s) + Na+(aq) + NO3-(aq)
Net Ionic Equations - continued Cancel out those ions that appear on both sides of the equation Ag+(aq) + NO3-(aq)+ Na+(aq) + Cl-(aq)→ AgCl(s) + Na+(aq) + NO3-(aq) What remains is the net ionic equation Ag+(aq) + Cl-(aq)→ AgCl(s)
Summary A net ionic equation shows only those particles that change in their appearance in the reaction and is balanced with respect to both mass and charge Questions 28 – 29, page 343
Predicting the Formation of a Precipitate Use as solubility table to determine whether a compound will form an aqueous solution (high solubility) or remain as a solid (low solubility) in water Table 11.3, page 344 Questions 32 – 35, page 344