Chemical Reactions Flashcards

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chemical equation

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a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products

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chemical formula

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a combination of chemical symbols and numbers to represent a substance

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chemical symbol

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a one-, two-, or three-letter abbreviation of the name of an element

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law of conservation of matter

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a law that states that matter cannot be created or destroyed in ordinary chemical and physical changes; also known as the law of conservation of mass

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matter

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anything that has mass and takes up space

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periodic table

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an arrangement of the elements in order of their atomic numbers such that elements with similar properties fall in the same column, or group