In this case the roman numerals indicate the oxidation state of the cation portion of the polyatomic ion: [Fe(II)O2]2- as opposed to [Fe(III)O2]1- Mn(II)=Mn2+
Mn(VII)=Mn7+
In this case the roman numerals indicate the oxidation state of the cation portion of the polyatomic ion: [Fe(II)O2]2- as opposed to [Fe(III)O2]1- Mn(II)=Mn2+
Mn(VII)=Mn7+
Mn2O7is more acidic.
I think what you are talking about is the number of atoms of each element in the named compounds. This is usually written with the numbers slightly below the atomic symbol but this is impossible to do on a computer screen and improvising other ways leads to confusion. Compound #1 is Manganese Dioxide; #2 could be called DiManganese Heptoxide.
Permanganic compounds contain manganese in a +7 oxidation state. Since oxygen in oxides always has a -2 oxidation state, the formula for permanganic oxide is Mn2O7.
the formula for manganese II ion is Mn 2+ .it is a positively charged ion
Yes, MnO2 is a compound, manganese dioxide.
Catalyst.
MnO2 is a black solid oxide of manganese with catalytic applications.
Well, tne chemical formula is MnO2. If you mean the name of it, that is manganese dioxide.
MnO2: oxidation number +4KMnO4: oxidation number +7
Well, tne chemical formula is MnO2. If you mean the name of it, that is manganese dioxide.
Black
The reaction for MnO2 mixed with KBrO3 and 9M sulfuric acid is as follows: 2KI + MnO2 + H2SO4 --> I2 +MnSO4 + K2SO4 + 2H2O.