Chemistry help! Emperical formula?

Question

Give the empirical formula for the binary compound formed by the most common monatomic ions formed by each pair of elements:
A. zinc and sulfur
B. barium and iodine
C. magnesium and chlorine
D. silicon and oxygen
E. sodium and sulfur

Answer 1

Notice two things when writing empirical formulas:

1.) The molecular formula and the empirical formula can be identical.

2.) You scale up from the empirical formula to the molecular formula by a whole number factor.

A.) ZnS
B.) BaI2
C.) MgCl2
D.) SiO2
E.) Na2S

Answer 2

ZnS
BaI2
MgCl2
SiO2
Na2S