Question

1) Complete and balance the following chemical reactins:
2HCI(aq)+Pb(NO3)2(aq)--->
2HI(aq)+K2SO3(s)--->
Pb(NO3)2(aq)+2KCI(aq)--->
Ba(NO3)2(aq)+Na2SO4(aq)--->
K2CO3(aq)+Ba(NO3)2(aq)--->
HCI(aq)+AgNO3(aq)--->

2) How could you separate gold from a mixture of zinc and gold?

3) Using a hydrochloric acid solution, how could you determine whether a white powder was zinc sulfide or silver nitrate? Write balanced equations.

ZnS(s)+2HCI(aq)--->
AgNO3(s)+HCI(aq)--->


THANK YOU SO MUCH!!!!

Answer 1

No one here will do your home work for you. What do you not understand about these questions?

Answer 2

2) we know that gold is the thing we want.so use a method to have reaction with zinc but not gold.
Hydrochloric acid is a good example.
then use filter and filter paper to filter the gold out

3)AgCl is insoluble in water which is white in colour.its the white precipitate

Answer 3

PbCl2+2HNO3