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1. Chemical Changes & Structure
Acids and Bases
pH
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Cards (5)
Neutral solution
Equal
concentrations
of
H
+
H^+
H
+
(aq) and
O
H
−
OH^-
O
H
−
(aq) ions.
Acidic solutions
Higher
concentration
of
H
+
H^+
H
+
(aq) ions than
O
H
−
OH^-
O
H
−
(aq)
Has pH
below
7
Alkaline solutions
Higher
concentration
of
O
H
−
OH^-
O
H
−
(aq) ions than
H
+
H^+
H
+
(aq) ions
Has pH
above
7
Dilution of an acidic solution with water
Decreases
the
concentration
of
H
+
H^+
H
+
(aq), and
pH
will
increase
towards
7
Dilution of an alkaline solution with water
Decreases
the
concentration
of
O
H
−
OH^-
O
H
−
(aq), and
pH
will
decrease
towards
7
