MgO, because both magnesium and oxygen are most often divalent.
MgO
No: The molecular formula is never smaller than the empirical formula.
The molecular formula of this compound is N2H2. This is obvious because the empirical formula of a compound is the lowest positive integer ratio of atoms present.
C2H5O. Empirical formula is the simplest integer ratio of atoms.
Emperical formula give the smallest whole number ratio of atoms in a compound
Magnesium usually forms divalent cations and fluorine usually forms monovalent anions. Therefore, the predicted empirical formula is MgF2.
MgO
X3Y is the empirical formula
An empirical formula has no data about the structure of a compound.
The Empirical Formula for sodium and fluorine is NaF, because Na has a +1 charge and F has a -1 charge which cancel each other out.
An empirical formula refers to the chemical formula that indicates the simplest ratio of atoms in a compound. Two different compounds may have the same empirical formula.
The empirical formula is representative for the chemical composition of a compound; the structural formula is representative for the spatial structure of the compound.
NaF is the empirical formula
CH2O because you have to divide by the number they all have in common which is 6
No: The molecular formula is never smaller than the empirical formula.
This is the chemical formula (empirical formula) or the formula unit of this compound.
Empirical formula: C3H2