Physical Science: Chemical Equations & Chemical Bonding

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Starting mass of reactants equals the total final mass of all products

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Law of Conservation of Mass

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Positively or negatively charged atom

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ions

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Compound composed of two elements

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binary compound

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Tells what elements a compound contains and the exact number of the atoms of those elements

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chemical formula

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Compound that has water chemically attached to its ions

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hydrate

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A substance formed when two or more elements are chemically bonded together

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compound

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The force that holds atoms together in a compound

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chemical bond

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A reaction where one element replaces another in a compound

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single replacement reaction

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A reaction where two compounds exchange ions to form two new compounds

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double replacement reaction

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A representation of a chemical reaction using symbols and formulas

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chemical equation