Science Chapter 2 2016 Flashcards Preview

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Flashcards in Science Chapter 2 2016 Deck (17):
1

chemical reaction

the process by which one or more substances change to produce one or more different substances

2

precipitate

a solid that is produced as a result of a chemical reaction in soultion

3

chemical formula

a combination of chemical symbols a numbers to represent a substance

4

chemical equation

a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products

5

reactant

a substance or molecule that participates in a chemical reaction

6

prouduct

a substance that forms in a chemical reaction

7

law of conservation of mass

the law states that mass cant be created or destroyed in ordinary chemical and physical changes

8

synthesis reaction

a reaction in which two or more substances combine to form a new compound

9

decomposition reaction

a reaction in which a single compound breaks down to form two or more simpler substances

10

single displacement reaction

a reaction in which one element or radical takes place of another element or radical in a compound

11

double displacement reaction

a reaction in which a gas a solid precipitate, or a molecular compound forms from the exchange of ions between two compounds

12

exothermic reaction

a chemical reaction in which heat is released to the surroundings

13

endothermic reaction

a chemical reaction that requires heat

14

law of conservation of energy

the law that states that energy cant be created or destroyed but can be changed from one form to another

15

activation energy

the minimum amount of energy required to start a chemical reaction

16

inhibitor

a substance that slows down or stops a chemical reaction

17

catayst

a substance that changes the rate of a chemical reaction without being used up or changed very much