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18 Cards in this Set
- Front
- Back
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Chemical Equation
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A short easy way to show a chemical equation, using symbols
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Precipate
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A solid that forms from a solution during a chemical equation.
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Chemical Formula
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A combination of symbols that represents the elements in a compound and their proportions.
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Decomposition
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A chemical reaction that breaks down into different substances
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Coefficient
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A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
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Products
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A substance formed as a result of a chemical reaction
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Reactants
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A substance that undergoes change in a chemical reaction
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Conservation of Matter
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The principle starting that matter is not created or destroyed during a chemical reaction.
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Synthesis
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A chemical reaction in which two or more simple substances combine to form a new, more complex substance.
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Replacement
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A reaction in which one element replaces another in a compound or when two elements in different compounds trade places.
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Subscript
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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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Physical Change
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A change in a substance that does not change its identity.
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Chemical Change
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A change in which one or more substances combine or break apart to form new substances.
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Describe The Steps in A Chemical Equation
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1. Write The Equation
2.Count the Atoms 3.Use Coefficients to Balance atoms 4. Look back and check |
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How are atoms and molecules similar?
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Atoms and molecules are both held together in a covalent bond.
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Atoms
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The basic part of an element
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molecule
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A neutral particle made of two or more elements joined by covalent bonds.
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Balance Equations
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Remember to balance certain equations
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