Term
| What is the Law of Conservation of Mass? |
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Definition
| "Law that states mass is neither created nor destroyed, only rearranged." |
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Term
| Why must a chemical equation be balances? |
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Definition
| If its not balanced then it goes agains the Law of Conservation of Mass and matter is created or destroyed. |
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Term
| What are the general types of chemical reactions? |
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Definition
| "Composition, Decomposition, Single Replacement, Double Replacement" |
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Term
| What happens to chemical bonds during a chemical reactions. |
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Definition
| Bonds in the reactants are broken and created in the products. |
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Term
| What happens to energy during a chemical reaction? |
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Definition
| Energy is either released or absorbed. |
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Term
| What does a reaction rate tell you? |
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Definition
| How fast a reaction is taking place. |
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Term
| What factors cause the rate of reactions to change? |
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Definition
| "Temperature, surface area, concetration, stirring and catalysts." |
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Term
| Under what conditions do physical and chemical equilibria occur? |
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Definition
| When a physical change does not go to completion and a chemical reaction does not go to completion. |
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Term
| What factors affect equilibrium? |
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Definition
| "Temperature, Pressure, & Heat" |
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Term
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Definition
| substances in a chemical reaction that undergo a chemical reaction |
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Term
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Definition
| substances that are formed as a result of a chemical reaction |
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Term
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Definition
| Representation of a chemical reaction with formulas |
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Term
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Definition
| numbers that appear before the formulas |
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Term
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Definition
| Reaction where 2 or more substances react to form a single substance. |
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Term
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Definition
| A reaction where a single substance breaks down into 2 or more simpler substances. |
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Term
| Single-Replacement Reaction |
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Definition
| A reaction where one element takes the place of another element. |
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Term
| Double-Replacement Reaction |
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Definition
| A reaction where two compounds exchange two positive ions and create new compounds |
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Term
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Definition
| energy stored in the chemical bonds of a substance |
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Term
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Definition
| "A reaction that gives off heat to its surroundings, will feel hot." |
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Term
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Definition
| "A reaction that absorbs heat from its surroundings, will feel cold." |
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Term
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Definition
| Rate at which reactants become products over time. |
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Term
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Definition
| Chemical that allows a reaction to occur faster. It is not used up in the reaction. |
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Term
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Definition
| State when forward and reverse paths of a reaction occur at the same rates. |
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Term
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Definition
| Reaction in conversions of reactants and products can occur simultaneously. |
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