Summary of arrows for reactions - when is it equilibrium? (1 Viewer)

[SadCeliac]

Hello all,

Question is in title, the main ones I get confused with is stuff like net ionic... e.g., if I am working out the net ionic equation of Pb(NO3)2 + NaOH - which forms Pb(OH)2 as a precipitate - should my net ionic be an equilibrium - Pb2+ + 2OH- <--> Pb(OH)2?? Because normally I'd find Ksp of Pb(OH)2 using an equilibrium reaction.

Also things like acid-base neutralisation is single arrow, but weak acid dissociation is equilibrium. (99% sure I have this correct)

I just feel like I'm missing something (a reaction), otherwise, hooray. Could someone please clarify?

Thanks!

 

[nsw..wollongong]

well yeah generally w/ ppt or dissolution equations there's a double arrow from the solid to the disassociated ions

 

[SadCeliac]

well yeah generally w/ ppt or dissolution equations there's a double arrow from the solid to the disassociated ions

yeah but in my example where it's asking for net ionic am i also just assuming a double arrow?

 

[SadCeliac]

yeah but in my example where it's asking for net ionic am i also just assuming a double arrow?

because in that case im going from ions to solid, which i mean if its reversible means the exact same thing, but im just not sure

 

[nsw..wollongong]

yeah but in my example where it's asking for net ionic am i also just assuming a double arrow?

yeah i think its double arrow for net ionics

 

[SadCeliac]

yeah i think its double arrow for net ionics

oh fr? I've been doing them wrong the whole time then oops

 

[nsw..wollongong]

oh fr? I've been doing them wrong the whole time then oops

don't take my word for it i might be wrong, we weren't tested on it so i never practiced it

 

[SadCeliac]

don't take my word for it i might be wrong, we weren't tested on it so i never practiced it

okok maybe someone else can clarify