Shared Flashcard Set

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Vocabulary Set 3
Vocabulary
15
Chemistry
11th Grade
01/05/2014

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Cards

Term
Activation Energy
Definition
The minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction.
Term
Aqueous
Definition
Of or containing water.
Term
Catalyst
Definition
A substance that speeds up a chemical reaction, but is not consumed by the reaction.
Term
Coefficient
Definition
A # placed in front of the parts of a chemical equation to indicate how many are involved; Always a positive whole #.
Term
Combustion
Definition
A reaction in which a substance rapidly combines with Oxygen to form 1 or more oxides.
Term
Decomposition
Definition
A reaction where a compound breaks down into 2 or more simpler substances.
Term
Double Replacement
Definition
A reaction where the positive & negative portions of 2 ionic compounds are inter-charged; At least 1 product must be water or a precipitate.
Term
Entropy
Definition
Describes & measures the degree of disorder in a process.
Term
Precipitate
Definition
To condense & fall from the air as rain, snow, sleet, or hail. To cause (a solid substance) to be separated from a solution.
Term
Product
Definition
A new substance formed when reactants undergo chemical change.
Term
React
Definition
To cause (a substance/substances) to undergo a reaction.
Term
Reactant
Definition
A substance that undergoes a reaction.
Term
Reaction Rate
Definition
Rate of change in the concentrations of the reactants & products can be characterize the rate of a chemical reaction.
Term
Single Displacement
Definition
A type of reaction where 1 element takes the place of another in a compound.
Term
Synthesis
Definition
Name given to a reaction in which 2 or more substances combine to form a single replacement.
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