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patima2000
@patima2000
October 2021
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Cr-->Cr2O3-->Cr(NO3)3-->Cr(OH)3-->Cr2O3-->Cr
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arkoure
4Cr + 3O2 => 2Cr2O3
Cr2O3 + 6HNO3 => 2Cr(NO3)3 + 3H2O
Cr(NO3)3 + 3NaOH => Cr(OH)3 + 3NaNO3
t
2Cr(OH)3 => Cr2O3 + 3H2O
t
Cr2O3 + 2Al => Al2O3 + 2Cr
5 votes
Thanks 20
patima2000
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Answers & Comments
Cr2O3 + 6HNO3 => 2Cr(NO3)3 + 3H2O
Cr(NO3)3 + 3NaOH => Cr(OH)3 + 3NaNO3
t
2Cr(OH)3 => Cr2O3 + 3H2O
t
Cr2O3 + 2Al => Al2O3 + 2Cr