Standard Task
1. Insoluble salts can be made by precipitation reactions. Which of
the following equations shows a precipitation reaction?
a. CuO + 2HCl
CuCl + Hâ‚‚O
(aq)
2(aq)
b. HCl) + NaOH
(aq)
(aq)
c. 2HNO + ZnCO
Koq)
(1)
d. Pb(NOâ‚‚)2(0) + 2NaCl
-
1
NaCl
1
(aq)
+ Hâ‚‚O
(aq)
Zn(NOâ‚‚)2(aq) + Hâ‚‚O
1
+ CO
PbClâ‚‚ +2NaNO,
2(1)
3(aq)
2(g)
