Redox reactions
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This mindmap is about redox reactions. It has the following content:
- ways to identify redox reactions
- oxidation states
- oxidation numbers
- pauling's scale of electronegativity
- 6 rules for assigning oxidation numbers
- ways to identify redox reactions
- oxidation states
- oxidation numbers
- pauling's scale of electronegativity
- 6 rules for assigning oxidation numbers
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loss of electrons
gain of oxygen
increase in oxidation state

gain of electrons
loss of oxygen
decrease of oxidation state


term used when electrons are transferred,
strictly used for ionic compounds
loss of electrons
oxidation has occurred
oxidation state has increased
gain in electrons
reduction has occurred
oxidation state has decreased

term used for covalent molecules
where electrons are shared in the
covalent bond
examples of molecules where oxidation state is used
HCl
H2O
what is oxidation number?
a value assigned to a each atom in a compound
a measure of the electron control it has, relative to the atom

electronegativity
a measure of an atom's ability
to attract electrons
increases from left to right
in the periodic table
due to the increase in
nuclear charge, resulting in
an increased attraction between nucleus and bond electrons

1. atoms in elemental state
atoms in leemental state have an oxidation state of 0
2. Simple ions
Oxidation number is the same as the
charge for simple ions
3. addition of all oxidation numbers
in a neutral compound
all oxidation numbers in a neutral compound
must add up to 0
4. addition of all oxidation numbers in a
charged compound
addition of all oxidation numbers in a
charged compound must add up to the charge
of the compound
5. usual oxidation number
for an element
usual oxidation number of an
element is equal to its charge
6. Exceptions to rule 5
some elements' oxidation numbers can change
due to the other elements in the compound