Hard Acids and Bases

H+
Hard Acid
Li+
Hard Acid
Na+
Hard Acid
K+
Hard Acid
Be2+
Hard Acid
Mg2+
Hard Acid
Ca2+
Hard Acid
Cr2+
Hard Acid
Cr3+
Hard Acid
Al3+
Hard Acid
SO3
Hard Acid
BF3
Hard Acid
Fe2+
Borderline Acid
Co2+
Borderline Acid
Ni2+
Borderline Acid
Cu2+
Borderline Acid
Zn2+
Borderline Acid
Pb2+
Borderline Acid
SO2
Borderline Acid
BBr3
Borderline Acid
Cu+
Soft Acid
Au+
Soft Acid
Ag+
Soft Acid
Tl+
Soft Acid
Hg2(2+)
Soft Acid
Pd2+
Soft Acid
Cd2+
Soft Acid
Pt2+
Soft Acid
Hg2+
Soft Acid
BH3
Soft Acid
F-
Hard Base
OH-
Hard Base
H2O
Hard Base
NH3
Hard Base
CO3(2-)
Hard Base
NO3(2-)
Hard Base
O2-
Hard Base
SO4(2-)
Hard Base
PO4(2-)
Hard Base
ClO4(2-)
Hard Base
NO2-
Borderline Base
SO3(2-)
Borderline Base
Br-
Borderline Base
N3-
Borderline Base
N2
Borderline Base
C6H5N
Borderline Base
SCN-
Borderline Base
R-
Soft Base
CN-
Soft Base
CO
Soft Base
I-
Soft Base
SCN-
Soft Base
R3P
Soft Base
C6H5
Soft Base
R2S
Soft Base
H-
Soft Base