How does silicon dioxide react with hydrofluoric acid? Chemistry Chemical Reactions Chemical Reactions and Equations 1 Answer anor277 Mar 5, 2017 Silicon dioxide can give the #SiF_6^(2-)# ion upon treatment with hydrofluoric acid. Explanation: #SiO_2(s) + 6HF(aq) rarr SiF_6^(2-) + 2H_3O^(+)# Answer link Related questions Question #fee47 Question #c5c15 Question #19eb9 Question #e2ea2 Question #bc751 Question #e2ea6 Question #08b07 What is the thermochemical equation for the combustion of benzene? Why are chemical reactions reversible? Why are chemical reactions important? See all questions in Chemical Reactions and Equations Impact of this question 1660 views around the world You can reuse this answer Creative Commons License