Question

In writing the complete ionic equation for the reaction (if any) that occurs when aqueous
solutions of KOH and Mg(NO3)2 are mixed, which of the following would not be
written as ionic species?
A) KOH
B) Mg(NO3)2
C) Mg(OH)2
D) KNO3
E) All of the above would be written as ionic species.

Answer 1

They are all Ionic species because they all contain a metal and a nonmetal

Answer 2

But the answer key say its C) Mg(OH)2

Answer 3

I just dont know the reason why thats the anwer

Answer 4

perhaps I'm not understanding the question

Answer 5

I think it asking that after u write the ionic formula which int one of the species tht is in the eqution after it dissosiates

Answer 6

Well we get the reaction

2KOH + 1Mg(NO3)2 -> Mg(OH)2+ 2KNO3

hmm maybe Mg(OH)2 is not soluble

Answer 7

I think MgOH2 might precipitate from solution

Answer 8

hence why we wouldn't write it as an ionic species

Answer 9

Oh yeh it is insoluble b/c most OH- r insoluble except for thoe containing Group 1A cation n NH4+

Answer 10

interesting

Answer 11

Is tht the reason tht it cnt be written as an ionic

Answer 12

Do u mind helping me with another problem if i post it?

Answer 13

yes, because when it is in solid form they are stuck together, when in solution they can be charged species stabilized by the intermolecular interactions of water

Answer 14

I might be able to but I'm pretty busy atm to be honest, trying to get through a cell bio 2 lecture

Answer 15

ok no problem. Good luck.

Answer 16

But yeah link me to your problem and I will have a look