Chrome Chromium, a transition metal used in chrome plating, forms both the $C r^{2+}$ and $C r^{3+}$ ions. Write the formulas for the ionic compounds formed when each of these ions react with fluorine and oxygen ions.
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Step 1: When $Cr^{2+}$ reacts with fluorine ions ($F^-$), the formula for the ionic compound formed is $CrF_2$. Show more…
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Chrome Chromium, a transition metal used in chrome plating, forms both the $\mathrm{Cr}^{2+}$ and $\mathrm{Cr}^{3+}$ ions. Write the formulas for the ionic compounds formed when each of these ions react with fluorine and oxygen ions.
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The ionic compound formed between chromium and oxygen is shown here. Name the compound and write its formula. (Hint: When naming the compound, remember that chromium is a transition metal cation and can have more than one possible charge.)
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