Net Ionic Equations.

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Presentation transcript:

Net Ionic Equations

Write and balance the reactions A solution of copper II chloride is added to a solution of sodium sulfide Excess hydrobromic acid solution is added to a solution of potassium hydrogen carbonate Butanol is burned in air.

Double Replacement Rxn (Precipitate forms) Cu +2 + S -2  CuS

Acid and hydrogen carbonate yield carbon dioxide gas H+ 1 + HCO3 -1  H2O + CO2

Combustion of a hydrocarbon Always yields water and carbon dioxide C4 H9 OH + O2  H2 O + CO2

Strong Acid neutralized by strong base Sulfuric acid with potassium hydroxide Complete equation: H2 SO4 + KOH  K2 SO4 + H2 O Net Ionic: 2 H+1 + 2 OH-  2 H2 O

Weak Acid with strong base Acetic acid with potassium hydroxide Complete equation H C2 H3 O2 + KOH  K C2 H3 O2 + H2 O Net Ionic Equation H C2 H3 O2 + OH-  C2 H3 O2 -1 + H2 O

Precipitation Reactions The reactants are the ions that make up the precipitate. The reactants must be in aqueous solutions so they can dissociate and become ions. Aqueous barium chloride and aqueous potassium sulfate Ba+2 + SO4 -2  BaSO4