REDOX
1
Chapter 21
REDOX &
Electrochemistry
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REDOX
2
There are two types of chemical reactions:
1)
acid-base reactions (Lewis)
2)
electron-transfer reactions
Oxidation/oxidize:
when you
remove
electrons from
a material
Reduction/reduce:
when you
add
electrons to a
material
You
cannot
have
oxidation
without
reduction
;
you
cannot generally
reduce
a molecule without
oxidizing
another molecule (and the other way
around).
Oxidizing agent:
a chemical that causes another
material to be
oxidized
(the
oxidizing agent
is
reduced
!)
Reducing agent:
a chemical that causes another
material to be
reduced
(the
reducing agent
is
oxidized
!)
REDOX