Determine if the reaction produces a precipitate. For a

Question

precipitate mark ‘a’ and if there is no precipitate mark ‘b’.
8. KOH(aq) + Fe(NO3)3(aq) 
9. MgCl2(aq) + Na(NO3)2(aq) 
10. NaBr(aq) + Ag(NO3) (aq) 
11. Na3PO4(aq) + Ba(NO3) 2(aq) 

Answer 1

8. Fe(OH)3 will ppt.
9. no reaction.
10. AgBr will ppt.
11. Ba3(PO4)2 will ppt.