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reactions that combine two or more substances in to one more complex compound; also sometimes called synthesis or composition reactions |
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reactions that decompose, or take apart, the formula units or molecules of a substance; the generalized chemical equation of a decomposition reaction shows one reactant breaking apart to form two products |
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a decomposition reaction that decomposes the reactants by an electric current in solution |
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single-replacement reactions |
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one element in an existing compound is replaced by another element; the general chemical equation is characterized by an element and a compound on both sides of the arrow |
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double-replacement reactions |
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two ionic comnpounds swap cations and anions with each other; usually occur in water solutions and produce solids that cannot be dissolved in water (insoluable) and settle to the bottom of the solution |
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a solid formed during a reaction; insoluable in water; indicated by the sybom (ppt) after its formula |
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a reaction that gives off thermal energy or those which produce heat/which have heat as a product |
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a reaction that requires thermal energy; reactions that absorb heat energy; includes most decomposition reactions; examples include the electrolysis of water, the production of slaked lime, the decompoisition of baking soda in batter and breaking down of crude oil |
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