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K has an oxidation number of +1 O has an oxidation number of (-2) x 4 So... the oxidation number for Mn is whatever is needed to make 1-8 equal to zero. Therefore, the oxidation number for Mn is +7
+7.
+8 is the usually quoted maximum oxidation number. Osmium tetra-oxide has this. +7 is fairly common as manganese in KMnO4 has this oxidation number.
K has an oxidation number of +1 O has an oxidation number of (-2) x 4 So... the oxidation number for Mn is whatever is needed to make 1-8 equal to zero. Therefore, the oxidation number for Mn is +7
Manganese oxidation state = +7 So, it is also called Manganate(VII)
MnO2: oxidation number +4KMnO4: oxidation number +7
K has an oxidation number of +1 O has an oxidation number of (-2) x 4 So... the oxidation number for Mn is whatever is needed to make 1-8 equal to zero. Therefore, the oxidation number for Mn is +7
+7.
MnCl2: oxidation number +2MnO2: oxidation number +4KMnO4: oxidation number +7
+8 is the usually quoted maximum oxidation number. Osmium tetra-oxide has this. +7 is fairly common as manganese in KMnO4 has this oxidation number.
The oxidation number of oxygen is -2 in most of its compounds
K has an oxidation number of +1 O has an oxidation number of (-2) x 4 So... the oxidation number for Mn is whatever is needed to make 1-8 equal to zero. Therefore, the oxidation number for Mn is +7
Manganese oxidation state = +7 So, it is also called Manganate(VII)
The oxidation number of manganese in KMnO4 is 7+.
the answer is -2.Related Information:The oxidation number of oxygen when it appears as an element is 0. The oxidation number in all compounds but peroxides is -2. The oxidation number of oxygen in peroxides is -1.
The oxidation number determines how much an element is oxidated, so the oxidation number of...1. elements is always 0.2. of simple ions is always the charge, e.g. in Cu2+ the oxidation number of copper is +2.3. hydrogen is usually +1, oxygen usually -2, alkali metals +1, etc.In molecules without a charge, the sum of the oxidation numbers has to be 0. This way you can calculate the oxidation number of its compounds. For example in KMnO4, the oxidation number of oxygen is -2, of K is +1, so if the sum is zero then the oxidation number of Mn has to be +7.In complex ions (OH-, MnO4-, ...) the sum of the oxidation numbers has to be the charge of the ion. (so in OH- and MnO4- it's -1).
In the compound Co2O3 cobalt has an oxidation number of 3 while oxygen has an oxidation number is -2.