Term
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Definition
A chemical reaction symbolized by a chemical equation in which the reactants and product are separated by an arrow that points to the right, toward the products.
(491) |
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Term
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Definition
A chemical reaction symbolized by an equation in which the products of a forward reaction have become the reactants, and the reactants are now the products. This is indicated by an arrow that points toward the left.
(491) |
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Term
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Definition
Point at which both the forward and reverse reactions in an equation have equal reaction rates. [When this occurs, the amounts of each substance in the reaction will not change, despite the fact that both reactions still proceed.]
(492) |
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Term
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Definition
A value that describes the concentrations at which a reaction comes to equilibrium. The equilibrium constant varies with temperature.
(496) |
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Term
| When K is large, the equilibrium is weighted toward the [products/reactants] side of the equation. |
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Definition
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Term
| When K is small, the equilibrium is weighted toward the [products/reactants] side of the equation. |
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Definition
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Term
| When K is near unity, the equilibrium is: |
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Definition
balanced between reactants and products.
(498) |
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Term
For the generic chemical equilibrium reaction
aA + bB ↔ cC + dD
we define the equilibrium constant
by what equation? |
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Definition
K = [C]c[D]d ÷ [A]a[B]b
(496) |
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Term
When a solid appears
in a chemical equilibrium,
it [is/is not] included in Equation 15.2. |
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Definition
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Term
When a liquid appears
in a chemical equation,
it [is/is not] included in Equation 15.2. |
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Definition
It is not included.
[This applies only to the liquid phase; it does not apply to the aqueous phase.]
(500) |
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Term
LeChatelier's Principle:
When a stress (such as a change in _______, ________, or _______) is applied to an equilibrium, the reaction will shift in a way that relieves the _________ and restores the __________. |
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Definition
When a stress (such as a change in concentration, pressure, or temperature) is applied to an equilibrium, the reaction will shift in a way that relieves the stress and restores the equilibrium.
(501) |
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Term
LeChatelier's Principle ignores
__________ and __________
as a source of stress to the equilibrium. |
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Definition
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Term
| When an equilibrium is subjected to an increase in pressure, it will shift [toward/away from] the side with the largest number of gas molecules. |
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Definition
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Term
If pressure decreases,an equilibrium will shift [toward/away from]
the side with the largest number
of gas molecules.
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Definition
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Term
When temperature is raised,an equilibrium will shift[toward/away from]
the side of the equation
that contains energy. |
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Definition
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Term
When temperature is lowered,
an equilibrium will shift
[toward/away from]
the side of the equation
that contains energy. |
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Definition
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Term
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Definition
The reaction in which
an H+ separates from an acid molecule
so that it can be donated
in another reaction.
(514) |
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Term
An acid whose ionization reaction
works very well
is said to be a _____________. |
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Definition
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Term
An acid whose ionization reaction
does not produce many H+ ions
is said to be a ____________. |
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Definition
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Term
|
Definition
The equilibrium constant
for an acid's ionization reaction.
(514) |
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Term
| If the ionization constant of an acid is large, the acid is considered a [strong/weak] acid. |
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Definition
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Term
If the ionization constant of an acid
is not large, the acid is considered
to be a [strong/weak] acid. |
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Definition
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Term
In general,
the larger the ionization constant,
the [stronger/weaker] the acid. |
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Definition
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Term
|
Definition
A scale that measures
the acidity of a solution.
The lower the pH,
the more acidic the solution.
(516) |
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Term
| The letters "pH" stand for what? |
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Definition
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Term
A pH of 7 indicates a solution that is
[acidic, basic, neutral]. |
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Definition
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