Answer:
umm it does not show what elements but I think its C. number of protons
Answer:lenses
Explanation:
A 3,1,1,3
hope the picture help u to understand :)
covalent bonds
Magnesium oxide = MgO
Iron = Fe
Iron (III) Oxide = Fe₂O₃
Magnesium = Mg
Skeleton equation = MgO + Fe ⇒ Fe₂O₃ + Mg
