Respuesta :

40042

Answer:

[tex]Cr_{2} O_{4}[/tex]

Explanation:

[tex]\frac{molecular weight}{molar mass}[/tex] =  [tex]\frac{168}{83.99}[/tex] =  2.00

[tex]CrO_{2}[/tex] x 2 = [tex]Cr_{2} O_{4}[/tex]