Match the correct formula to its ionic compound. Magnesium sulfideCalcium oxidePossible AnswersCaOMgS22​ CaO22​ Mg22​ SCa22​ OMgSI DON'T KNOWRESETSUBMIT ANSWER

To match the correct formula to its ionic compound, we need to identify the chemical formulas for magnesium sulfide and calcium oxide.

1. Identify the Compounds

   • Magnesium sulfide is formed from magnesium (Mg) and sulfur (S). The ionic charge of Mg is +2, while the charge of S is -2. Therefore, the formula for magnesium sulfide is $\text{MgS}$.
   • Calcium oxide is formed from calcium (Ca) and oxygen (O). The ionic charge of Ca is +2, while the charge of O is -2. Hence, the formula for calcium oxide is $\text{CaO}$.

2. Match Each Formula to the Compound

   • Magnesium sulfide: $\text{MgS}$
   • Calcium oxide: $\text{CaO}$

Final Answer

• Magnesium sulfide: $\text{MgS}$
• Calcium oxide: $\text{CaO}$

Using the given options, the correct matches would be:

• CaO for Calcium oxide
• $\text{MgS}$ for Magnesium sulfide (though not listed in the options, the correct information is given above).