Chemistry I with making some molecular and net ionic equations

[haneyl]

1. I need to display the molecular & net ionic equations for the following reactions:



2. NH4NO3 > Na2CO3
NH4NO3 > NaBr
NH4NO3 > Na2SO4
Ba(NO3)2 > NaBr
Ca(NO3)2 > NaBr
Ca(NO3)2 > Na2SO4



3. I don't really have any attempts because I'm completely lost on how to start...

 

[Borek]

Ba(NO3)2 > NaBr

Do you mean reaction when mixing these two substances, or reaction to convert first to second (not that it sounds likely)?