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The oxidation number of chromium in Cr2O7 is +7. The oxidation number of oxygen is -2, so 7 O atoms times -2 = -14. In order to balance the -14 on the oxygen atom, each chromium atom must have an oxidation number of +7, because 2 Cr atoms times +7 equals +14.
Wiki User
∙ 11y ago
Wiki User
∙ 10y agoTrue however I believe the question did not place Chromium in any compund therefore technically its oxidation number would be O as it is in its natural state as Cr.
Chromium (symbol: Cr) can have several oxidation numbers, depending on the nature of the compound it is found in. Possible oxidation numbers for Chromium are:
- 6
- 5
- 4
- 3
- 2
- 1
- -1
- -2
Wiki User
∙ 11y ago+1 for each Cs, -2 for each O, +6 for each Cr
Wiki User
∙ 11y agoThe oxidation number of chromium in the dichromate polyatomic ion, Cr2O72-, is +6.
Wiki User
∙ 11y ago+6 for each Cr and -2 for each O
Wiki User
∙ 13y ago+6
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What is the oxidation number for Cr in Cr2O7-2?
6+
What is the oxidation number of O of Cr2O7?
The oxidation state for oxygen in this compound is 2-, as it is for most oxygen compounds.
What is the oxidation number for Cr2O7 -2?
-2 for each O +6 for each Cr
What is oxidation number of CR2O7 2?
+6 for each Cr -2 for each O
What is the oxidation number of Cr in CrBr?
In CrBr (chromium monobromide) Cr would have an oxidation number of +1. This compound is not known perhaps you meant CrBr3, where chromium has an oxidation number of +3
What is the oxidation number for Cr in Cr2O7-2?
6+
What is the oxidation number of O of Cr2O7?
The oxidation state for oxygen in this compound is 2-, as it is for most oxygen compounds.
What is the oxidation number for Cr2O7 -2?
-2 for each O +6 for each Cr
What is oxidation number of CR2O7 2?
+6 for each Cr -2 for each O
What is the oxidation number of Cr in CrBr?
In CrBr (chromium monobromide) Cr would have an oxidation number of +1. This compound is not known perhaps you meant CrBr3, where chromium has an oxidation number of +3
What is the oxidation number of Cr2O72?
In Cr2O72- chromium (Cr) has an oxidation number of 6+ while oxygen has an oxidation number of 2-.
What is the oxidation number for k2cro4?
Potassium's oxidation number is +1. Chromium's oxidation number is +6. Oxygen's oxidation number is -2.
What is the oxidation number of chromium in K2Cr2O7?
+6
What is the oxidation number of chromium in CrNO3?
1
Why the oxidation number of Cr2O72- is 6?
It is true for chromium. But O shows 2asthe oxidation number.
What is the oxidation number of Fe and Cr in FeCr2O7?
The possible oxidation numbers for iron cations are +2 and +3. Oxygen in oxyanions is usually assigned an oxidation number of -2, producing a total negative charge of -14 for the seven oxygen atoms in a dichromate anion. If the iron cation has an oxidation number of +2, the two chromium atoms must have a total oxidation number of +12, which is possible when each chromium atom has an oxidation number of +6. An iron (III) cation would require the chromium atoms to have a non integral charge, which is not possible since electrons with half charges are not known. Therefore, the oxidation number of iron in the compound is +2 and the oxidation number for chromium is +6.
What is the oxidation number of the phosphorus in chromium III phosphate?
The oxidation number of chromium varies from +2 to +6.
