How does silicon dioxide react with hydrofluoric acid?

1 Answer
Mar 5, 2017

Silicon dioxide can give the SiF_6^(2-)SiF26 ion upon treatment with hydrofluoric acid.

Explanation:

SiO_2(s) + 6HF(aq) rarr SiF_6^(2-) + 2H_3O^(+)SiO2(s)+6HF(aq)SiF26+2H3O+