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Subdecks (10)
practical
chem yr11 w practical keywords (unorganised)
121 cards
chemical reactions nd energy
chem yr11 w practical keywords (unorganised)
25 cards
acids and salts
chem yr11 w practical keywords (unorganised)
68 cards
bonding (covalent, ionic, and metallic)
chem yr11 w practical keywords (unorganised)
40 cards
chemical reactions
chem yr11 w practical keywords (unorganised)
22 cards
crude oil
chem yr11 w practical keywords (unorganised)
92 cards
properties of metals
chem yr11 w practical keywords (unorganised)
25 cards
electroysis
chem yr11 w practical keywords (unorganised)
40 cards
metal and their extraction
chem yr11 w practical keywords (unorganised)
50 cards
Cards (726)
What types of bases are included in the reactions with acids discussed in the video?
Metal oxides, metal
hydroxides
, and metal
carbonates
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What is formed when an acid reacts with a metal
oxide
or
hydroxide
?
A
salt
and water
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If hydrochloric acid reacts with sodium oxide, what salt is produced?
Sodium chloride
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In the reaction between sulfuric acid and potassium hydroxide, what is the resulting salt?
Potassium sulfate
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What is the general pattern for neutralization reactions between acids and bases?
The
negative
ion from the acid combines with the positive ion from the base to form a
salt
, and water is always produced.
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What additional product is formed when acids react with metal carbonates?
Carbon dioxide
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When nitric acid reacts with calcium carbonate, what is the resulting salt?
Calcium nitrate
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Why do we
need two calcium
ions
to combine with one nitrate ion in the reaction between nitric acid and calcium carbonate?
Because calcium has a
2+
charge and nitrate has a
1-
charge.
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What is the first step to make a soluble salt using an insoluble base?
Place some
dilute acid
in a beaker and gently
heat
it.
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What does the pH scale measure?
The
acidity
or
alkalinity
of a solution
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What is the pH value of a neutral solution?
pH 7
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What does a pH value less than 7 indicate?
The solution is
acidic
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How does the strength of an acid relate to its pH value?
The
lower
the pH, the
stronger
the acid
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What does a pH value
greater
than
7
indicate?
The solution is
alkaline
or
basic
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How does the strength of an alkali relate to its pH value?
The higher the pH, the stronger the alkali
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What does the pH scale measure?
The
acidity
or
alkalinity
of a solution
View source
What is the pH value of a neutral solution?
pH
7
View source
What does a pH value less than 7 indicate?
The solution is
acidic
View source
How does the strength of an acid relate to its pH value?
The
lower
the pH, the
stronger
the acid
View source
What does a pH value
greater
than
7
indicate?
The solution is
alkaline
or
basic
View source
How does the strength of an alkali relate to its pH value?
The
higher
the pH, the
stronger
the alkali
View source
What happens to the H<sup>+</sup> concentration as the pH decreases by one unit?
It
increases
by a factor of
10
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What is an alkali?
A
base
that
dissolves
in
water
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What do acidic solutions release in solution?
Hydrogen
ions, H<sup>+</sup>
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What characterizes a strong acid?
It
completely dissociates
to release
H
<
sup
>
+
</sup> ions in
aqueous solution
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Name three examples of strong acids.
Hydrochloric
,
nitric
, and
sulfuric
acids
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What characterizes a weak acid?
It
partially dissociates
to release
H
<
sup
>
+
</sup> ions in
aqueous solution
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Name three examples of weak acids.
Ethanoic
,
citric
, and
carbonic
acids
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What do alkali solutions contain?
Hydroxide
ions,
OH
<sup>-</sup>
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What characterizes a
strong base
?
It fully
dissociates
to release
OH
<sup>-</sup> ions in
aqueous
solution
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Name two examples of strong bases.
Sodium
hydroxide and
potassium
hydroxide
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What characterizes a
weak base
?
It
partially dissociates
to release
OH
<
sup
>
-
</sup>
ions
in
aqueous solution
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Name two examples of weak bases.
Ammonia
and
ammonium hydroxide
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What is the general reaction of a dilute acid with a metal?
Acid
+
metal
→
salt
+
hydrogen
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What does the
reactivity
of the
metal
affect in the reaction with
dilute acid
?
The
reaction
depends on the
reactivity
of the
metal
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What is the general equation for neutralization reactions?
Acid
+
alkali
→
salt
+
water
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What is produced when an
acid
reacts with a
metal carbonate
?
Salt
,
water
, and
carbon dioxide
View source
What are the three types of neutralization reactions?
Acid + alkali →
salt
+
water
Acid + base →
salt
+
water
Acid + metal carbonate →
salt
+
water
+
carbon dioxide
View source
What determines the salt produced in a reaction?
It depends on the
acid
used and the
positive
ions in the
base
,
alkali
, or
carbonate
View source
What is the reaction of hydrogen ions with hydroxide ions in neutralization?
H<sup>+</sup> (aq) +
OH
<sup>-</sup> (aq) → H<sub>2</sub>
O
(l)
View source
See all 726 cards
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