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!!!!
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!!!!
Answers
DrBob222
No one here will do your home work for you. What do you not understand about these questions?
TOM
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
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
Charitech
PbCl2+2HNO3