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A-level chemistry inorganic
reactions of aqeous ions
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Cards (2)
Fe
(
H
2
O
)
3
(
OH
)
3
_{\text{Fe}\left(\text{H}_2\text{O}\right)_3(\text{OH})_3}
Fe
(
H
2
O
)
3
(
OH
)
3
what colour precipitate does this form
brown
Describe what happens when iron 2 oxide is exposed to air and give the formula of a compound that causes this change
green
precipitate to
dark brown
precipitate
this happens as the
oxygen
in the
atmosphere
oxidises
Fe
^
2+
to [
Fe
(
OH
)_3(
H_2O
)_
3
]
