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16 Cards in this Set
- Front
- Back
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Compound |
Associates made of two or more elements bonded together chemically |
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Element |
A pure substance; A substance made of only one type of atom |
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Molecule |
A substance made up of more than atom (a compound, for example,C6H12O6). |
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Valence electrons |
Electrons in the outer most orbit of the electron cloud ; valence electrons identify the chemical properties of an element |
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Balanced chemical equation |
The numbers of each element are equal in the products of reactants of a chemical change |
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Chemical change |
The formation of a new substance with different properties; cannot be undone by physical means |
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Chemical equation |
A representation (a model!) of a chemical reaction that uses symbols to show the relationship between the reactants and the products |
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Chemical formula |
A combination of a chemical symbols and numbers represent a substance; A model of substance |
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Chemical reaction |
The process in which items are rearranged and chemical bonds are broken and form to produce a chemical change of substance |
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Coefficient |
The number placed in FRONT of of a chemical formula in a chemical equation; the coefficient tells the number of molecules of a substance |
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Law of conservation of mass |
The law that states that mass cannot be created or destroyed in ordinary chemical and physical changes |
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Precipitate |
The formation of solids from a solution; precipitates indicates a chemical reaction |
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Product |
A substance that forms in a chemical reaction; represented on the right side of the chemical equation |
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Reactant |
A substance that participates in a chemical reaction; represented on the left side of the chemical equation |
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Subscript |
The number written to the right is slightly below an element in the chemical formula; represents the number of atoms of an element |
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Yield |
The quantity of product that forms as a result of a chemical reaction |
