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Vocabulary Quiz 10
Reactions
9
Science
9th Grade
11/17/2015

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Term
Decomposition Reaction
Definition
Compounds break down into simpler substances
Term
Synthesis Reaction
Definition
Two or more elements or compounds combine to make a more complex substance
Term
Combustion Reaction
Definition
Reaction in which CO2 and H2O are produced.
Term
Single Displacement Reaction
Definition
Occurs when one element replaces another one in a compound
Term
Double displacement Reaction
Definition
 Occurs when different atoms in two different compounds trade places
Term
Law of Conservation of mass
Definition

Matter can neither be created nor destroyed

Term
Chemical Reaction
Definition
Change in which one or more substances are converted into a new substance.
Term
Polyatomic Ion
Definition
a charged (ion) composed of two or more atoms that can be considered to be acting as a single unit.
Term
Chemical Equation
Definition
a way to describe a chemical reaction using chemical elements and other symbols.
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