Term
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Definition
The rate of change of a product in a chemical reaction.
(459) |
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Term
|
Definition
Experiment in which one test is done under standard conditions, and all other tests are compared to those standard conditions.
(462) |
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Term
|
Definition
The test done under standard conditions in a controlled experiment.
(462) |
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Term
| In order to react, chemicals must collide with one another so that their electrons can either be ____________ or ______________. |
|
Definition
transferred or rearranged.
(463) |
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Term
| Why does higher temperature increase the chemical reaction rate? |
|
Definition
Because the reactant molecules (or atoms) move faster, increasing the chance for a collision.
(463) |
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Term
| Why does decreasing the concentration also decrease the chemical reaction rate? |
|
Definition
Because there are fewer reactant molecules (or atoms) to collide with one another.
(463) |
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Term
| When a solid object gets crushed, the molecules get spread out over a larger area. Chemists call this an increase in the ______________ of a reactant. |
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Definition
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Term
| Increasing the surface area of a reactant increases reaction rate because: |
|
Definition
the molecules (or atoms) of the reactant can more easily mingle with the molecules (or atoms) of the other reactants.
(463) |
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Term
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Definition
|
|
Term
Exponents in the rate equation are called
the ________ of the chemical reaction
with respect to
the ____________ they affect. |
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Definition
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Term
| Adding the exponents in the rate equation gives you: |
|
Definition
the overall order of the chemical equation
(465) |
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Term
When the rate of a chemical reaction
is unaffected by the concentration
of one of its reactants,
the exponent of the rate equation is ______ for that reactant. |
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Definition
|
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Term
The reaction rate orders for a chemical reaction must be determined __________-ly.
They are [equal/not equal] to the stoichiometric coefficients in the chemical equation. |
|
Definition
experimentally,
not equal
(474) |
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Term
|
Definition
The rate of change at a particular moment, calculated from rate equation.
(475) |
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Term
Chemical reactions
never actually __________;
there will always be
some __________ left. |
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Definition
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Term
Since the rate constant [increases/decreases] dramatically
with increasing temperature,
the reaction rate does as well.
|
|
Definition
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|
Term
The rate of many chemical reactions
doubles for every ______ increase
in temperature. |
|
Definition
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Term
|
Definition
A substance that alters
the rate of a chemical reaction
without changing concentration throughout the course of the reaction.
(479) |
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|
Term
Catalysts speed up the reaction rate
without actually ____________________
in the chemical reaction. |
|
Definition
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|
Term
Catalysts speed up reaction rates
by doing what? |
|
Definition
Lowering the activation energy
of the reaction.
(481) |
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Term
|
Definition
Catalysts that are in a different phase
than the reactants.
(481) |
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Term
|
Definition
Catalysts that have
the same phase as at least one
of the reactants.
(481) |
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Term
|
Definition
A series of chemical equations
that tells you the step-by-step process
by which a chemical reaction occurs.
(483) |
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