Chapter 5 - Chapter 5 The chemical properties of a compound...

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The chemical properties of a compound are the transformations that the molecules or ions can undergo when the substance reacts 5.1 When an ionic compound dissolves in water, its ions separate and become surrounded by water molecules Dissociation – The process in which ions separate Strong electrolyte – Completely converted to ions when it forms an aqueous solution Three different kinds of products can cause an exchange reaction to occur in aqueous solution: 1. Formation of an insoluble ionic compound 2. Formation of a molecular compound that remains in solution (Most commonly happens when water is produced in acid-base neutralization reactions) 3. Formation of a gaseous molecular compound that escapes from the solution Precipitate – An insoluble product (Precipitate formation is indicated by an (s) next to the precipitate, a solid, in the overall equation) Spectator ions – Ions that are in solution as reactants and remain there after the reaction (Like spectators at a play or game, they are present but not involved directly in the real action) Net ionic equation – An equation that includes only the symbols or formulas of ions in solutions or compounds that undergo change Steps for writing a net ionic equation: 1. Write the overall balanced equation using the correct formulas for the reactants and products 2. Use the general guidelines in Table 5.1 to determine the solubilities of reactants and products 3. Recognize that all soluble ionic compounds dissociate into their component ions in aqueous solution 4. Use the ions from Step 3 to write a complete ionic equation with the ions in solution from each soluble compound shown separately (The precipitate is represented by its complete formula) 5. Cancel out the spectator ions from each side of the complete ionic equation to obtain the net ionic equation
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Chapter 5 - Chapter 5 The chemical properties of a compound...

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