Predict the chemical formulas of the compounds formed by the following pairs of ions: (c) Na+ and Cr2O72-

Video transcript

Hey everyone, we're asked to provide the chemical formula of the compound when we combined rubidium with a plus one charge and oxalate with a -2 charge. To answer this question, we can go ahead and use our Criss cross method and criss cross our charges. So we're going to end up with rubidium too, and oxalate as is. And this will be our final formula. So I hope this made sense and let us know if you have any questions.