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Balance the oxidation states on the atoms in the molecule.
An oxide always contains oxygen in -2 oxidation state , in ionic compounds this is O2-.
As the chromium is Cr(IV) in +4 oxidation state, ( shown as an ion Cr4+ ) you can balance the states or charges which ever way to get
CrO2 (which you can write as Cr4+ (O2-)2 )
What else can I help you with?
Does chromite have iron in it?
Chromite is an iron chromium oxide: FeCr 2 O 4
How many moles of magnesium oxide are formed when 4 moles of magnesium react with oxygen Here is the formula 2 Mg plus O 2 is equal to 2 Mg O?
From the formula, you have 2 atoms of Magnesium combine with one oxygen molecule to form 2 molecules of magnesium oxide. So when 4 magnesium atoms combine with two molecules of oxygen you get 4 magnesium oxide molecules. So from 4 moles of magnesium you get 4 moles of Magnesium oxide.
What is magnanese IV oxide?
The chemical formula of this is MnO2.It is brown in colour. The oxidation number of Mn is 4 in this compound.
How many electrons does chromium iv ion?
The chromium ion in its +4 oxidation state (Cr^4+) has lost four electrons. Chromium has an atomic number of 24, which means a neutral chromium atom has 24 electrons. Therefore, a Cr^4+ ion has 24 - 4 = 20 electrons.
How many moles of magnesium oxide re formed when 4 moles of magnesium react with oxygen this is the formula for the reaction?
The formula for magnesium oxide is MgO, showing that each formula unit of magnesium oxide contains one mole of magnesium ions. Therefore, if there is ample oxygen available, 4 moles of magnesium will form 4 moles of magnesium oxide.
Which is the correct formula for nitrogen 4 oxide?
Nitrogen(IV) oxide is N2O4.
What is the formula for lead(4) oxide?
Lead(IV) oxide would have the formula PbO2
What is the formula for chromium iii iodide?
Chromium has four oxidation states: 2, 3, 4, and 6.Iodine has one, and it's -1.There will be a iodide for each oxidation state of chromium.CrI2 Chromium (II) iodideCrI3 Chromium (III) iodideCrI4 Chromium (IV) iodideCrI6 Chromium (VI) iodide
Disproportionation of chromium oxide in acid?
6CrO2 (aq) + 10 H+ (aq) --> Cr O72- (aq) + 4 Cr3+ (aq) + 5H2O (l)
What is the formula for titanium oxide?
TiO
Chemical formula for the compound formed between chromium III and borate?
Chromium(III) borate has the chemical formula CrBO3.
What is the formula of lead 4 oxide?
(Pb2)O
Does chromite have iron in it?
Chromite is an iron chromium oxide: FeCr 2 O 4
What is the formula for chromium iii thiocyanate?
Cr(SCN)3 is the chemical formula for the Chromium (III) Thiocyanate. This is because Chromium (III) has a charge of +3 while Thiocyanate has a charge of -1. To balance the charges, we switch the 2 charges. So we have 1 ion of chromium (III) with 3 ions of thiocyanate.
What is the ionic formula for lead 4 oxide?
The ionic chemical formula of lead(IV) oxide is: (Pb)4+ + 2 O-.
Result of burn ammonium dichromate?
Burning ammonium dichromate leads to the decomposition of the compound into chromium(III) oxide, nitrogen gas, and water vapor. The reaction produces a green residue of chromium(III) oxide, while the released nitrogen gas produces the characteristic "volcano effect" due to the rapid expansion of the gas.
What is the formula for chromium III bromide hexahydrate?
Chromium has four oxidation states: 2, 3, 4, and 6. Chlorine has one, and it's -1. There will be a chloride for each oxidation state of chromium. Here they are: CrCl2 Chromium (II) chloride CrCl3 Chromium (III) chloride CrCl4 Chromium (IV) chloride CrCl6 Chromium (VI) chloride
