0
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 )
Add your answer:
Earn +20 pts
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 moles of magnesium oxide re formed when 4 moles of magnesium react with oxygen this is the formula for the reaction?
If the balanced chemical equation for the reaction is given, we can determine the stoichiometry of the reaction. For the formation of magnesium oxide (MgO) from magnesium (Mg) and oxygen (O2), the balanced equation is: [2Mg + O2 \rightarrow 2MgO]. This means that 2 moles of Mg form 2 moles of MgO. Therefore, with 4 moles of Mg, 4 moles of MgO would be formed in this reaction.
How do you calculate the chemical formulae of stannic oxide?
That's old-fashioned nomenclature, but that's okay - the "-ic" suffix means you're dealing with tin with a higher number of valence electrons, in this case, 4. So with tin as +4 and oxygen, as always, as -2, you're going to get a formula of SnO2. Tin with a charge of +2 is the other possible valence option, and that's called "stannous oxide" with the "-ous" suffix, and a formula of SnO. The better way to express stannic oxide is simply to say tin(IV) oxide, and stannous oxide as tin(II) oxide.
Which is the correct formula for nitrogen 4 oxide?
The correct formula for nitrogen 4 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
What is the formula for titanium oxide?
TiO
Disproportionation of chromium oxide in acid?
In acidic conditions, chromium(III) oxide undergoes disproportionation, forming chromium(II) ions and chromium(VI) ions. The overall reaction is: 2Cr2O3 + 4H+ -> 2Cr3+ + Cr2O7^2- + 2H2O
Chemical formula for the compound formed between chromium III and borate?
The chemical formula for the compound formed between chromium III and borate is Cr(B(OH)4)3.
What is the formula of lead 4 oxide?
(Pb2)O
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.
Does chromite have iron in it?
Chromite is an iron chromium oxide: FeCr 2 O 4
What is the ionic formula for lead 4 oxide?
The ionic formula for lead (IV) oxide is PbO2. In this compound, lead is in the +4 oxidation state and oxygen is in the -2 oxidation state.
What is stannic oxide formula?
The chemical formula for stannic oxide is SnO2, where Sn represents the element tin and O represents oxygen. Stannic oxide is a compound where tin is in the +4 oxidation state.
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.
