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A barium ion has a charge of 2+ and an iodide ion has a charge of 1-, therefore, two iodide ions are needed to balance the barium ion.

Ba2+ + 2I- --> BaI2

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Q: How many iodine ions are needed to balance out a barium ion?
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Related questions

What is the chemical formula for barium ions and iodide ions?

The formula for barium iodide is BaI2. "Barium iodine" is not a recognized chemical entity.


How many potassium ions and iodine ions would be needed to make a neutral compound?

One of each K+ + I- -----> KI.


Is barium hydroxide a cation or an anion?

Barium hydroxide is not a cation or an anion. It is a compound. It is made of barium ions and hydroxide ions.


What ions are produced when barium chloride dissociates?

when barium chloride dissociates, it produces : Ba2+ ions (cation) Cl- ions (anion)


Why is barium carbonate toxic while barium sulphate is not?

Barium sulfate is insoluble in water, while barium carbonate will dissolve. As barium carbonate dissolves in water, it dissociates, and the barium ions are freed. The barium ions are toxic, and that is the crux of the issue.


How many sodium ions are needed to balance the charge of one phosphate ion?

three sodium ions


How many barium ions are there in 250 mL of a barium iodide solution that has an iodide ion concentration of 0.125 M?

The number of barium ions is 0,188.10e23.


Is Barium unlikely to form positively charged ions?

yes, Barium is unlikely to form positively charged ions.


What is the formula for the compound formed by barium ions and chloride ions?

The formula for the ionic compound barium chloride is BaCl2.


What is the ratio of barium ions to nitrate ions?

If you mean in barium nitrate, the formula is Ba(NO3)2, which is a ratio of 1Ba:2NO3.


What mon atomic ions do barium and selenium make?

An ionic compound, Barium selenide or BaSe is formed, with the ions Ba2+ and Se2-.


Is barium chlorite an acid?

Acids are substances which, when dissolved in water, dissociate to form hydrogen ions (H+ ions). Since barium chloride does not contain hydrogen ions, it is not an acid.