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Aqueous Solutions

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. Double Replacement Rxns.

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Aqueous Solutions

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  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 (H2SO4) and aqueous potassium hydroxide form water and another product.

  6. Try It Write a chemical, complete ionic and net ionic equation for: Nitric acid (HNO3) reacts with aqueous rubidium sulfide to form gaseous hydrogen sulfide and aqueous rubidium nitrate.

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