Element/polyatomic ion Symbol Oxidation numberPotassium K 1+Magnesium Mg 2+Oxygen O 2−Nitrate NO3 1−Sulfate SO4 2−Phosphate PO4 3−What is the correct formula for magnesium nitrate?Multiple choice question.Mg2(NO3)2Mg2NO3MgNO3Mg(NO3)2
Question
Element/polyatomic ion Symbol Oxidation numberPotassium K 1+Magnesium Mg 2+Oxygen O 2−Nitrate NO3 1−Sulfate SO4 2−Phosphate PO4 3−What is the correct formula for magnesium nitrate?Multiple choice question.Mg2(NO3)2Mg2NO3MgNO3Mg(NO3)2
Solution
The correct formula for magnesium nitrate is Mg(NO3)2.
Here's why:
Magnesium (Mg) has an oxidation number of 2+ and Nitrate (NO3) has an oxidation number of 1-.
In order to balance the charges, we need two nitrate ions for each magnesium ion. This is represented in the formula Mg(NO3)2, which means one magnesium ion and two nitrate ions.
Similar Questions
The total number of ions in one mole of magnesium nitrate, Mg(NO3)2 is × 1024.Give the answer to 3 significant figures. The × 1024 is not required in the answer.
What is the chemical formula for magnesium oxide:Group of answer choicesMg₂OMgO₂Mg₂O₃MgO
Choose the correct chemical formula for magnesium acetate which contains one magnesium atom, four carbon atoms, six hydrogen atoms and four oxygen atoms. 1 - Mg(CHO)42 - MgC4(H2O2)23 - Mg(C2H3O2)24 - MgC2H3O2
Which formula shown is incorrect for the name given?Group of answer choicesmagnesium nitrite: Mg(NO2)3calcium carbonate: CaCO3aluminum sulfate: Al2(SO4)3sodium hydrogen carbonate: NaHCO3potassium hydroxide: KOH
Select the correct formula for a nitrate ion:
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