<span>Structural and chemical formulas to most information about a compound. The chemical formula is number of atoms of each element in a compound. structural formula is more actual number of atoms of each element in a compound. and empirical, molecular formulas are used in most information provides to a compound.</span>
The number of molecules decreases.
Well transform boundaries are when 2 plates rub against each other and convergent boundaries and when plates come together and divergent boundaries are when plates move apart. So eventually one plate will collide into another then will another then again until it forms a Pangea
Because usually when Ba forms ion it will form Ba2+. But when Fe forms ion, it can form Fe2+ or Fe3+. So you need to distinguish them by add their valence at the name.