sorry i forgot to write the equation for the last one...
Concentrated mercury (II) nitrate + sodium iodide...
once again im not sure of the states..
as for the balanced ionic equations.. for the first one.. im not sure how to do :S
the second one:
+ 2Na 1+(aq)
+ 2OH 1-(aq)
which results in...
lol... i have a good feelings its wrong because i only got half a mark for this question...
as for the third part.. i got it completely wrong.. so thanks for whatever help you can give me