Determine whether or not each chemical formula is an empirical formula. CaCO3 Choose... C6H12O6 Choose... NaMnO4 Choose... Ba3(PO4)2 Choose... K2C2O4 Choose...

CaCO3: empirical.

C6H12O6: not empirical.

NaMnO4: empirical.

Ba3(PO4)2: empirical.

K2C2O4: not empirical.

Explanation:

Hello.

In this case, since the empirical formula of a chemical compound is the smallest whole number ratio of atoms of each element in the compound, for each compound we proceed as follows:

CaCO3: it is empirical since the subscripts there cannot be reduced anymore.

C6H12O6: not empirical since the smallest whole number ratio of atoms would be CH2O.

NaMnO4: it is empirical since the subscripts there cannot be reduced anymore.

Ba3(PO4)2: it is empirical since the subscripts there cannot be reduced anymore.

K2C2O4: not empirical since the smallest whole number ratio of atoms would be KCO2.

Best regards.

it's c. elements are placed in rows based on how may valencies electrons have.