1. Aqueous Solutions Some solutes exist as molecules when dissolved in water (sugar, ethanol) Many solutes dissociate or form ions in water Acids form H + ions; bases form OH - ions so mixing an acid and base will produce a salt and water

2. Double Replacement Rxns Involve solutions (aq) with a salt dissolved in water. Both reactants will be aqueous and one product will be aqueous Other product will be a precipitate (solid), water (liquid) or gas The product that remains aqueous really hasn’t reacted or changed, so we can simplify the equation

3. Ionic Equations Substances that are ions in the equation are written as ions (not compounds) Complete ionic equation = shows all of the ions involved Net ionic equation = shows only the ions that “participate” in the reaction Spectator ions = ions that don’t participate in reaction (show up on both sides)

4. Try It Write a chemical, complete ionic and net ionic equation for: Aqueous solutions of sodium carbonate and manganese (V) chloride are mixed, forming the precipitate manganese (V) carbonate.

5. Try It Write a chemical, complete ionic and net ionic equation for: Sulfuric acid (H 2 SO 4 ) and aqueous potassium hydroxide form water and another product.

6. Try It Write a chemical, complete ionic and net ionic equation for: Nitric acid (HNO 3 ) reacts with aqueous rubidium sulfide to form gaseous hydrogen sulfide and aqueous rubidium nitrate.