What is the formula for magnesium nitrate? A Mg_(2)NO B Mg_(2)NO_(3) C Mg(NO_(3))_(2) D MgNO_(3)

Magnesium nitrate is a chemical compound with the formula Mg(NO3)2. It is an ionic compound, meaning it is composed of positively charged magnesium ions (Mg2+) and negatively charged nitrate ions (NO3-). The subscript "2" in the formula indicates that there are two nitrate ions for each magnesium ion in the compound. This is because magnesium has a +2 charge, and each nitrate ion has a -1 charge. Therefore, two nitrate ions are needed to balance the charge of one magnesium ion. This results in the formula Mg(NO3)2, which corresponds to option C.