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I. Title: Double Displacement Reactions II. Purpose: To gain a better understanding of the typical reaction of the addition of two binary compounds, and how the reaction of those two compounds can be predicted. III. Variables: ==>Dependent Variable: Reagents given, hence the solutions we make from these reagents, and the standard solubility rules. ==>Controlled Variables: The two reagents which we will react together at each trial. ==>Independent Variable: Whether the reagents will create a precipitate or not, which depends on the reagents combined. IV. Hypothesis: If the compound is containing mettle and is added to a compound that is also containing mettle. The two mettles will change places and then something in the equation will precipitate out of the solution. The majority of the elements will not precipitate and none will have a whole solution of precipitant. All will have some form of ion solution that we are left over from the chemical reaction. V....

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