Writing Ionic Formulas: Practice Problems

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Lots of practice problems for writing formulas of ionic compounds, so you can get really good at this. In order to write an ionic formula, the charges of the positive ion (cation) and the negative ion (anion) have to balance each other out so that the compound is neutral.

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No. I hope to make a video series on covalent bonding very soon!

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[tdewitt]

No, actually you never can have an unevenly charged ionic compound, so that's important to keep in mind. Always the charges have to balance for the ionic formula to be correct. So you'll always need 3 N+ to balance out that 1 P3-.

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[Dnjzzzz]

I put it on half speed, you sounded/looked super drunk but It allowed me to work it out in time, thanks

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[ricaflores]

thank you for this... such a great help. I've never learned about this when i was in college. what i know is just to " crisscross" the given charges.. without knowing why..

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[michaelpenalosa]

Thank you so much for making that clear and helping so many!

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[rahulgc]

your awesome!! wish our chem teacher explained it as easy as you make it look