Single and Double Replacements
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8 Terms
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Single Replacement
One substance (metal or nonmetal) is replaced by another substance (metal or nonmetal)
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Double Replacement
Always starts with two ionic compounds in an aqueous solution
Must produce a precipitate, water, or a gas
Uses solubility ryles to determine the state of matter of products
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Must produce a precipitate, water, or a gas
Uses solubility ryles to determine the state of matter of products
\
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Metal replaces metal
Ex: Fe(s) + CuO2(aq) → Cu(s) + FeO2(aq)
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Nonmetal replaces nonmetal
Ex: Cl2(g) + 2KI(s) → 2KCl(s) + I2(g)
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Double Replacement example
Pb(NO3)2(aq) + KI(aq) → PbI2(s) + KNO3(aq)
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Soluble
solid dissolved in solution; (aq) is used in reaction equation
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Insoluble
solid does not dissolve in solution; (s) is used to reaction equation
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Insoluble and slightly soluble are often used interchangeably
Since they are used interchangeably, you would use (s)
Note 
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