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-2 for each O

+6 for Cr

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What is the oxidation number of CrO42?

The oxidation number of chromium (Cr) in CrO4^2- is +6. Since each oxygen atom has an oxidation number of -2, and the overall charge of the polyatomic ion is -2, the oxidation number of chromium can be determined by solving the equation: (oxidation number of Cr) + 4(-2) = -2.


What is the oxidation number of Mn in MnCrO42?

In Mn(CrO4)2 manganese has +4 oxidationnumber, the ioncharge of chromate ion (CrO42-) is -2.


What is the name of the CrO4 ions?

If this compound existed it would be called chromium heptoxide. This would imply an impossibly high oxidation number for chromium. Chromium forms a number of oxides including Cr2O3 and a chromium(VI) oxide, chromium oxide peroxide.


The CrO42- ion was involved in a chemical reaction during which it was transformed into Cr3 plus ions. What is the change in oxidation number of the chromium atom?

2CrO2 -1 (aq) + 2H2O (l) + 6ClO -1 (aq) --------> 2CrO4 -2 (aq) + 3Cl2 (g) + 4OH -1 (aq)Cr increases from 3+ to 6+ in oxidation state.+3


What is the oxidation number of HClO?

Hydrogen's oxidation number is +1.Chlorin's oxidation number is +1.Oxygen's oxidation number is -2.


What is the oxidation number of acetate?

The oxidation number of acetate (CH3COO-) is -1. The carbon atom has an oxidation number of +3, each hydrogen atom has an oxidation number of +1, and the oxygen atoms have an oxidation number of -2.


What is the oxidation number of H2CO2?

The oxidation number of each hydrogen in H2CO2 is +1, while the oxidation number of each carbon in CO2 is +4. This is because hydrogen usually has an oxidation number of +1, and oxygen usually has an oxidation number of -2.


What is the Oxidation number of sand?

Silicon's oxidation number is +4.Oxygen's oxidation number is -2


What is the oxidation number of nitrosyl?

The oxidation number of nitrosyl (NO) is +1. Nitrogen typically has an oxidation number of -3, and oxygen typically has an oxidation number of -2. In NO, nitrogen has a -3 oxidation number and oxygen has a -2 oxidation number, leading to an overall oxidation number of +1 for the nitrosyl ion.


What is the oxidation number for Nb in NbO2?

Oxidation number of Nb is +4. Oxidation number of O is -2.


Rank these items in order of increasing oxidation number for manganese MnCl2 Mn KMnO4 Mno2 lowest oxidation number?

MnCl2: oxidation number +2MnO2: oxidation number +4KMnO4: oxidation number +7


What is the oxidation number of H2O2?

The oxidation number for H is +1, and the oxidation number for O is -1.