Unsur-Unsur Periode Keempat : Sifat Reaksi Dari Senyawa-Senyawa Krom Dan Mangan


 

 

 

 

UNSUR 
Oksida
Jenis oksida
Rumus Basa/Asam
24Cr
(krom)
CrO
Oksida basa
Cr(OH)2
Cr2O3
Oksida amfoter
Cr(OH)3
HCrO2
CrO3
Oksida Asam
H2CrO4
H2CrO7
25Mn
(mangan)
MnO
Oksida Basa
Mn(OH)2
Mn2O3
Mn(OH)3
MnO3
Oksida Asam
H2MnO4
HMnO4
Mn2O7
26Fe
(besi)
FeO
OKSIDA BASA
Fe(OH)2
Fe2O3
Fe(OH)3
27Co
(kobal)
CoO
Co(OH)2
Co2O3
Co(OH)3
28Ni
(nikel)
NiO
Ni(OH)2
Ni2O3
Ni(OH)3
29Cu
(tembaga
)
Cu2O
CuOH
CuO
Cu(OH)2

 

 

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