Chapter 2 Flashcards Preview

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Flashcards in Chapter 2 Deck (17):
1

chemical reaction

a process in which one or more substances change to make one or more new substances.

2

precipitate

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

3

chemical formula

a combination of chemical symbols and 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

product

the substance that forms in a chemical reaction

7

law of conservation of mass

the law that states that mass cannot 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 the place of another element or radical in a compound

11

double-displacement reaction

a reaction i which gas, a solid precipitate, or a molecular compound forms from exchange of ions between two compunds

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 sates that energy cannot be created or destroyed but can be changed from one form to another

15

activation

the minimum amount of energy required to start a chemical reaction

16

inhibitor

a substance that slows down or stops a chemical reaction

17

catalyst

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