For Mg the oxidation no is +2 while it is -2 for oxygen.
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H2SO4 is a compound and as such does not have an oxidation number. The individual atoms in this compound have oxidation number +1 for each hydrogen atom, +6 for sulfur, and -2 for each oxygen atom.
oxidation number of any element in its molecular state equals zero but it differs when in a compound
It contains only two elements. Fe shows +3 number. Chlorine shows -1 as the oxidation number.
- 2 for each O, +3 for each Ni
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The hydrogen atoms are each in the 1+ oxidation state. The oxygen is in it's 2- oxidation state.
The formula of a compound indicate the number of atom each element in a molecule of a compound in question.Te oxidation number of a pure element in it's in atomic or molecular state is zero.E.g.H,O,He etc
H2SO4 is a compound and as such does not have an oxidation number. The individual atoms in this compound have oxidation number +1 for each hydrogen atom, +6 for sulfur, and -2 for each oxygen atom.
oxidation number of any element in its molecular state equals zero but it differs when in a compound
It contains only two elements. Fe shows +3 number. Chlorine shows -1 as the oxidation number.
- 2 for each O, +3 for each Ni
That depends on the compound.
+2 for Mn and -1 for each Cl.
-2 for each O +6 for S
Magnesium is a divalent cation, with oxidation number +2, and bromide is a monovalent anion, with oxidation number -1 for each of the two ions. Thus the compound is electrically neutral.
This compound is not possible, but if it had been, the oxygen should have oxidation state of -4