could someone tell me the exact chemical names of Mn2O3, MnO2, MnO3 and Mn2O7, eg: manganese (II) oxide, i got manganese (II) oxide for all of them! CLEARLY WRONG!
An explanation would be good,
thank you very much
2007-09-27 06:39:15 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
But Stevegeo1, should the oxidation number be the one which is either the central of the elements or the minority, for example Mn2O3, you said Manganese oxide (III) but it should be (II) because the oxygen is the minority oxidation number.
2007-09-27 06:52:55 · update #1
MnO: Mn+2 so Manganese(II) oxide
Mn2O3: Mn+3 so Manganese(III) oxide
MnO2: Mn+4 so Manganese(IV) oxide
MnO3: Mn+6 so Manganese(VI) oxide
Mn2O7: Mn+7 so Manganese(VII) oxide
Oxygen is always -2 in these compounds (and almost always in all compounds)
Mn2O7: 7 Oxygens so 7 x -2=-14; 2 Mn so -(-14/2) = 7
The Roman numerals after Manganese( ) refer to the valence or oxidation number of Manganese.
2007-09-27 06:50:11 · answer #1 · answered by skipper 7 · 0⤊ 0⤋
5
2016-05-20 00:06:33 · answer #2 · answered by ? 3 · 0⤊ 0⤋
Mn2O3 = manganic oxide, manganese(III) oxide
MnO2 = manganese dioxide, manganese(IV) oxide
MnO3 = manganese(VI) oxide
Mn2O7 = permanganic oxide, manganese(VII) oxide
This first is the usual name, the second is the Stock name
2007-09-27 06:47:43 · answer #3 · answered by steve_geo1 7 · 0⤊ 0⤋