Question

Plz answer this question... Tomorrow is my exam... ​

Answer 1

The elements are calcium,Flourine,Hydrogen,nitrogen,oxygen,Magnesium,chlorine

Answer 2

Answer:-

• $\boxed{\boxed{CaF2---------》Calcium and Fluorine.}}$
• $\boxed{\boxed{HNO3---------》Hydrogen, Nitrogen and Oxygen.}}$
• $\boxed{\boxed{MgCl2----------》Magnesium and Chlorine.}}$
• $\boxed{\boxed{MgO-----------》Magnesium and oxygen.}}$