E_-_102_F11_Notes

S1 group16elementsossetepohaveos2

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ero)
 • H2O
(H:
+1,
O:
‐2)
 • The
total
of
the
O.S.
of
all
atoms
in
an
ion
equals
the
charge
of
the
ion
 • Fe3+
(Fe:
+3),
MnO4‐
(Mn:
+7,
O:
‐2)
 • Group
1
metals
(Li,
Na,
K,
Rb,
Cs,
Fr)
have
O.S.
=
+1
 • Group
2
metals
(Be,
Mg,
Ca,
Sr,
Ba,
Ra)
have
O.S.
=
+2
 • F
has
O.S.
=
‐1

 • Cl,
Br,
I,
and
At
have
O.S.
=
‐1
except
when
combined
with
oxygen
and
other
halogens
 • H
has
O.S.
=
+1,
except
when
bonded
to
metals
when
its
O.S.
=
‐1
(LiH,
for
instance)
 • O
has
O.S.
=
­2
except
for
peroxides
(H2O2
and
N2O2
where
O.S.
=
‐1
for
O)
or
when
 combine
with
F
(OF2
where
O.S.
=
+2
for
O)
 • • • • • In
binary
compounds
with
metals:
 group
17
elements
(F,
Cl,
Br,
I,
At)
have
O.S.
=
‐1
 group
16
elements
(O,
S,
Se,
Te,
Po)
have
O.S.
=
‐2
 group
15
elements
(N,
P,
As,
Sb,
Bi)
have
O.S.
=
‐3
 All
other
oxidation
numbers
are
selected
to
make
the
algebraic
sum
of
the
oxidation
 numbers
equal
to
the
net
charge
of
the
molecule
or
ion

 ChE102
Fall
2011
Class
Notes
‐
Electrochemistry
 
 
 
 
 
 
 
 E ‐1 
 Reduction­Oxidation
(REDOX)
Reactions
 • In...
View Full Document

This note was uploaded on 12/28/2011 for the course CHE 102 taught by Professor Simon during the Winter '08 term at Waterloo.

Ask a homework question - tutors are online