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Unit 4 Vocabulary

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Across
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A solid that forms from a solution during a chemical reaction
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What is being made
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A short, easy way to show a chemical reaction, using symbols
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The principle that the total amount of matter is neither created nor destroyed during any chemical or physical change
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A substance that enters into a chemical reaction
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A one or two letter representation of an element
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A neutral group of two or more atoms held together by covalent bonds
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When one or more substances combine or break apart to form new substance
Down
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A number in front of a chemical formula in an equation that indicates how many molecules of each reactant and product are involved in a reaction
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Two or more elements combined together
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A substance formed as a result of a chemical reaction
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Alters the form or appearance of a material
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A rearrangement of the atoms or molecules of two or more substances, resulting in the formation of one or more new substances
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A number in a chemical formula that tells the number of atoms in a molecule or the ratio of elements in a compound
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Symbols that show the elements in a compound and the ratio of atoms