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13 Cards in this Set
- Front
- Back
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Chemical Reactions |
The process in which atoms are rearranged to produce new substances |
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Chemical Formula |
This uses the chemical symbols to represent a given substance |
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Chemical Equation |
An expression that uses symbols to show the relationship between the starting substances and the substances that are produced by a chemical reaction |
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Reatants |
Are the substances that participate in a chemical reaction |
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Products |
The substances formed in a reaction |
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The Law of Conservation of Mass |
States that matter is neither created nor destroyed in ordinary physical and chemical changes |
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Coefficient |
a number that is placed in front of a chemical formula |
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Endothermic Reaction |
A chemical reaction the requires the input of energy (gets colder) |
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Exothermic Reaction |
A chemical reaction that requires the output of energy (gets warmer) |
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The Law of Conservation of Energy |
States that energy cannot be created or destroyed |
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What effects the rate of reactions? |
Concentration, Surface Area, Temperature, and Catalysts |
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What happens to energy During a Chemical Reaction? |
Energy can be absorbed, released and always conserved |
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How are chemical reactions modeled |
With Chemical Eqauations |
