Term
| What is a Chemical Reaction? |
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Definition
| Process which matter combines or breaks a part to form new kinds of matter with different properties. |
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Definition
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Term
| What is potential energy? |
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Definition
| energy stored in an object because of its position relative to others |
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Term
| What is the Law of Conservation of matter? |
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Definition
| energy is neither created or destroyed, just changes form |
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Term
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Definition
| A compound that contains only hydrogen and carbon atoms. |
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Term
| What is a chemical equation? |
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Definition
| a symbollic method of representing a reaction |
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Term
| What is an exothermic reaction? |
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Definition
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Term
| What is an endothermic reaction? |
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Definition
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Term
| what is the law of conservation of mass? |
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Definition
| Mass is neither created nor destroyed |
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Term
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Definition
| insoluble solutions formed through a chemical reaction in a solution. |
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Term
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Definition
| substance formed as a result of a chemical reaction. |
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Term
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Definition
| Substance that is a starting material before a chemical change. |
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Term
| What is the activity series? |
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Definition
| List of elements in which each will replace all below it but not above. |
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Term
| The number of _________ you have at the start must = the number of ________ at the end. |
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Definition
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Term
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Definition
| The ability to cause a change in matter. |
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Term
| H2, N2, Cl2,I2, O2, F2, and Br2 are all examples of what? |
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Definition
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Term
| What is a Combustion reaction? |
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Definition
| an exothermic reaction in which heat is released and a substance combines with OXYGEN forming products in which all elements are combined with ocygen. |
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Term
| Combustion reactions are cpmmonly called________ |
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Definition
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Term
| What is the general equation for Combustion? |
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Definition
CxHy+O2 ---> CO2+H2O
The x and y are variables and change depending on the hydrocarbon. Other substances such as wood, charcoal, paper, sugar, iron, and magnesium will burn with oxygen. |
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Term
| What is a Synthesis Reaction? |
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Definition
| In a synthesis reaction, the reactants are all elements which combine to form a compound. It takes two substances to form one compound. |
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Term
| What is the general equation for a synthesis reaction? |
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Definition
A+B--->AB
You can use the general formula to predict what the product might be if two elements were meant to react. If the charge of an element varies, predict both possibilities. |
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Term
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Definition
| A compound breaks down to form 2 or more substances |
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Term
| What is the general equation for decomposition? |
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Definition
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Term
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Definition
| It is where an ionic compound breaks apart into its compound ions when dissolved. |
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Term
| Most decomposition reactions are _____________ |
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Definition
Endothermic
(require energy) |
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Term
| Dissociation is all about ________'s charges. |
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Definition
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Term
| What is a simple replacement reaction? |
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Definition
One element takes place of another element as a part of a compound
*subscripts not carried over |
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Term
| What is the general equation for single replacement? |
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Definition
A+BC---> BA+C
*Metals replace Metals. Nonmetals replace Nonmetals. |
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Term
| Replacement reactions are ___________ |
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Definition
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Term
| What is a double replacement reaction? |
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Definition
| The positive metal ion combines with the negative of the other and vice versa |
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Term
| What is the general equation for Double replacement reactions? |
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Definition
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Term
| If both products are soluble the reaction will or will not happen? |
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Definition
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Term
| In double replacement reactions, you must look at the chart to see if_________ |
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Definition
| The products are soluble or nonsuluble |
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Term
| What are chemical changes influenced by? |
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Definition
| Temperature, Pressure, physical state and other conditions. |
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