Answer:
False
Explanation:
7.71x10^23 molecules
Avogadro's # = 6.022x10^23
1.28 mol SiO2 x 6.022x10^23/ 1 mol SiO2 = 7.71x10^23 molecules
In order to determine the mole ratio, you need to begin with a balanced chemical equation.
d) catión