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LaurenScience Vocab.

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Question
Answer
Law of Conservation of Mass   states that the mass of an isolated system (closed to all matter and energy) will remain constant over time.  
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Physical Change   changes affecting the form of a chemical substance, but do not change the chemical composition of that substance.  
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Chemical Change   it occurs when a substance combines with another to form a new substance.  
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Element   Simpilest form of matter that cannot be broken down.  
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Chemical Formula   A faster way of showing/writing atoms, molecules, and equations. and show the type and quantity of atoms and molecules that are present.  
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Element (Diatomic) Molecule   a molecule of only one type of atom with a #2 subscript.  
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Compound Molecule   a molecule thats made up of more than 1 type of atom.  
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Chemical Equation   a way of describing a chemical reaction.  
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Chemical Reaction   a process that leads to the transformation of one set of chemical substances to another.  
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Reactants (of a chemical equation)   substances that go through a chemical change.  
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Products (of a chemical equation)   substances that results from a chemical change.  
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Coefficient (in a chemical equation)   tells the number of molecules in a formula, equation, or even a compound molecule. a blank one means theres only one.  
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Subscript (in a chemicle equation)   tells the number of a certain type of atom in a molecule.  
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