Question

Glass is often etched to provide a design. In this process the calcium silicate found in glass reacts with aqueous hydrofluoric acid to produce aqueous calcium fluoride, silicon tetrafluoride gas and liquid water.

Write this in a word and skeleton equation

Answer 1

Word equation: Calcium silicate + Hydrofluoric acid → Calcium fluoride + Silicon tetrafluoride gas + Water

Skeleton equation: CaSiO3(s) + 4HF(aq) → CaF2(aq) + SiF4(g) + 2H2O(l)

Answer 2

Word equation: Glass + Hydrofluoric acid → Calcium fluoride + Silicon tetrafluoride + Water

Skeleton equation: CaSiO3 + 4HF → CaF2 + SiF4 + 2H2O