Silicon dioxide reacts with hydrofluoric acid to form silicon tetrafluoride and water.
SiO₂ (s) + 4 HF (g) --> SiF₄ (g) + 2 H₂O (l)
Grams of your reactant SiO2 here 813
Grams of your reactant HF here 989
Determine the amount in grams of product formed from each reactant.