What are the phases for the equation below?
The equation is Mg(OH)2 + 2 HNO3 ---> Mg(NO3)2 + 2 H2O but it also asks for the phases, but I do not know if some are liquid, aqueous, or solid. Thanks!
- Trevor HLv 78 months agoFavourite answer
Mg(OH)2 (s) + 2 HNO3(aq) → Mg(NO3)2 (aq) + 2 H2O (l)
s = solid
aq = in aqueous solution
l = liquid
- busterwasmycatLv 78 months ago
I am thinking that the Mg(OH)2 and Mg(NO3)2 are solids, the nitric acid is aqueous, and the water is liquid. Basically what Trevor said, except that the magnesium nitrate would be a solid or it would have been written in terms of ions (with a charge notation). It is definitely not intended to be an ion complex in solution, in that particular context. It would be a solid, presumably the solid that would precipitate when the magnesium hydroxide dissolved into the acid.
The acid would leach the hydroxide, and the nitrate would combine with the Mg2+ once enough Mg2+ was in the solution. this would not be a solid-solid transition reaction. It is a dissolve and precipitate (dissolution-precipitation) reaction.