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∙ 7y agoIn the compound Al₂O₃, aluminum has an oxidation number of +3, and oxygen has an oxidation number of -2. This gives a total charge of zero for the compound, as it should be electrically neutral.
-2
In Ni2O3, since oxygen has an oxidation number of -2 and there are three oxygen atoms, the total oxidation number contributed by oxygen is -6. Since the compound as a whole is neutral, the total oxidation number must be 0. Therefore, the oxidation number of nickel (Ni) in Ni2O3 is +3 to balance out the oxidation number from oxygen.
In the compound Fe2O3, iron has an oxidation number of +3, and oxygen has an oxidation number of -2. This results in a neutral compound where the total positive charge from iron (+6) balances the total negative charge from oxygen (-6).
+6 for each sulphur. +1 for each Na; Two oxygens are as peroxides and will have -1 charge / oxidation number each. Six oxygens are as oxides and will have -2 charge each. So, 2(+1) + 2y + 2(-1) + 6(-2) = 0 Or y = +6 (the charge / oxidation number of sulphur)
In the compound Co2O3 cobalt has an oxidation number of 3 while oxygen has an oxidation number is -2.
-2
In Ni2O3, since oxygen has an oxidation number of -2 and there are three oxygen atoms, the total oxidation number contributed by oxygen is -6. Since the compound as a whole is neutral, the total oxidation number must be 0. Therefore, the oxidation number of nickel (Ni) in Ni2O3 is +3 to balance out the oxidation number from oxygen.
The oxidation number of silicon (Si) in SiO2 is +4. Oxygen (O) typically has an oxidation number of -2, so in this compound, the total oxidation number must equal zero. Since there are two oxygen atoms in SiO2, the oxidation number of silicon must be +4 to balance out the -4 from the oxygens.
In the compound Al2O3, aluminium has an oxidation number of +3, while oxygen's oxidation number is __-2 ____. For aluminium oxide (Al2O3) to form the ionic charges MUST balance. Hence For the 2 aluminiums it is 2 x 3 = +6 For the 3 oxygens it is 3 X -2 = -6 +6 -6 = 0 So the charges balance, hence Al2O3 is neutrally charged compound and NOT an ion.
In the compound Fe2O3, iron has an oxidation number of +3, and oxygen has an oxidation number of -2. This results in a neutral compound where the total positive charge from iron (+6) balances the total negative charge from oxygen (-6).
+6 for each sulphur. +1 for each Na; Two oxygens are as peroxides and will have -1 charge / oxidation number each. Six oxygens are as oxides and will have -2 charge each. So, 2(+1) + 2y + 2(-1) + 6(-2) = 0 Or y = +6 (the charge / oxidation number of sulphur)
In the compound Co2O3 cobalt has an oxidation number of 3 while oxygen has an oxidation number is -2.
The sum of the oxidation numbers is zero for the compound.
The oxidation number for carbon in CHI3 compound is -2. In CHI3, iodine has an oxidation number of -1 and hydrogen has an oxidation number of +1, which allows carbon to have an oxidation number of -2 to balance the overall charge of the compound.
In the compound Co2O3 cobalt has an oxidation number of 3 while oxygen has an oxidation number is -2.
The oxidation number of Si in H2SiOF6 is +4. Oxygen has an oxidation number of -2, and since there are six oxygen atoms in the compound, the total charge from oxygen is -12. Hydrogen has an oxidation number of +1. Therefore, to balance the charges, Silicon must have an oxidation number of +4.
In the compound H2S, hydrogen has an oxidation number of +1, and sulfur has an oxidation number of -2.