Questions: Sort the following formulas for ionic compounds into correct and incorrect Magnesium Phosphate: Mg2(PO4)3 Iron(II) Nitrate: Fe(NO3)2 Chromium(III) Sulfate: Cr2(SO-)3 Ammonium Chloride, NH4Cl Sodium Nitrate: Na(NO3)2

Sort the following formulas for ionic compounds into correct and incorrect Magnesium Phosphate: Mg2(PO4)3 Iron(II) Nitrate: Fe(NO3)2 Chromium(III) Sulfate: Cr2(SO-)3 Ammonium Chloride, NH4Cl Sodium Nitrate: Na(NO3)2
Transcript text: Sort the following formulas for ionic compounds into correct and incorrect Magnesium Phosphate: $\mathrm{Mg} 2(\mathrm{PO} 4) 3$ Iron(II) Nitrate: $\mathrm{Fe}(\mathrm{NO} 3) 2$ Chromium(III) Sulfate: $\mathrm{Cr} 2\left(\mathrm{SO}^{-}\right) 3$ Ammonium Chloride, NH 4 Cl Sodium Nitrate: $\mathrm{Na}(\mathrm{NO} 3) 2$
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Solution

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Solution Steps

Step 1: Identify the Correct Formulas for Ionic Compounds

To determine if the formulas for the ionic compounds are correct, we need to check if the charges of the ions balance to make a neutral compound.

Step 2: Analyze Each Compound

  1. Magnesium Phosphate: $\mathrm{Mg}_2(\mathrm{PO}_4)_3$

    • Magnesium ion: $\mathrm{Mg}^{2+}$
    • Phosphate ion: $\mathrm{PO}_4^{3-}$
    • Formula: $\mathrm{Mg}_3(\mathrm{PO}_4)_2$ (correct formula should be $\mathrm{Mg}_3(\mathrm{PO}_4)_2$ to balance the charges)
    • Incorrect

  2. Iron(II) Nitrate: $\mathrm{Fe}(\mathrm{NO}_3)_2$

    • Iron(II) ion: $\mathrm{Fe}^{2+}$
    • Nitrate ion: $\mathrm{NO}_3^{-}$
    • Formula: $\mathrm{Fe}(\mathrm{NO}_3)_2$ (correct)
    • Correct

  3. Chromium(III) Sulfate: $\mathrm{Cr}_2\left(\mathrm{SO}_4\right)_3$

    • Chromium(III) ion: $\mathrm{Cr}^{3+}$
    • Sulfate ion: $\mathrm{SO}_4^{2-}$
    • Formula: $\mathrm{Cr}_2(\mathrm{SO}_4)_3$ (correct)
    • Correct

  4. Ammonium Chloride: $\mathrm{NH}_4\mathrm{Cl}$

    • Ammonium ion: $\mathrm{NH}_4^{+}$
    • Chloride ion: $\mathrm{Cl}^{-}$
    • Formula: $\mathrm{NH}_4\mathrm{Cl}$ (correct)
    • Correct

  5. Sodium Nitrate: $\mathrm{Na}(\mathrm{NO}_3)_2$

    • Sodium ion: $\mathrm{Na}^{+}$
    • Nitrate ion: $\mathrm{NO}_3^{-}$
    • Formula: $\mathrm{NaNO}_3$ (correct formula should be $\mathrm{NaNO}_3$ to balance the charges)
    • Incorrect

Final Answer

  • Magnesium Phosphate: $\mathrm{Mg}_2(\mathrm{PO}_4)_3$ - \(\boxed{\text{Incorrect}}\)
  • Iron(II) Nitrate: $\mathrm{Fe}(\mathrm{NO}_3)_2$ - \(\boxed{\text{Correct}}\)
  • Chromium(III) Sulfate: $\mathrm{Cr}_2\left(\mathrm{SO}_4\right)_3$ - \(\boxed{\text{Correct}}\)
  • Ammonium Chloride: $\mathrm{NH}_4\mathrm{Cl}$ - \(\boxed{\text{Correct}}\)
  • Sodium Nitrate: $\mathrm{Na}(\mathrm{NO}_3)_2$ - \(\boxed{\text{Incorrect}}\)
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