Why does HF react with silica but not with the other acids?

You know the expression, “opposites attract”? Well, in chemistry, you could play off that expression and say, “opposites react.” Acids react with bases, not other acids. Oxidizers react with reducers, not other oxidizers. read more

Well, in chemistry, you could play off that expression and say, “opposites react.” Acids react with bases, not other acids. read more

However, there is an exception which is it will react react with a thing- Hydrofluoric acid ($\ce{HF}$) The reaction is undergo like the equation below: $$\ce{4HF(g) + SiO2(s) -> SiF4(g) + 2H2O(l)}$$ Only $\ce{HF}$ can react with sand ($\ce{SiO2}$), others chemical can't as sand is really that stable. read more