PH NGĂTRÌNHĂPH N NG
Câu 30: Ph ngătrìnhăph n ng:
(1) 2Fe + 2I
2
ă2FeI
2
.
(2)ă3Fe(d )ă+ă8HNO
3
(l)ă ă3Fe(NO
2
)
2
+ 2NO + 4H
2
O
(3)AgNO
3
+ Fe(NO
3
)
2
Fe(NO
3
)
3
+ Ag.
(4) 2AlCl
3
+ 3Na
2
CO
3
ăAl
2
(CO
3
)
3
+ 6NaCl. : Sai AlCl
3
+ Na
2
CO
3
+ H
2
O - > Al(OH
3
) + NaCl
+ CO
2
(5) FeO + 2HNO
3
(l)ă ăFe(NO
3
)
2
+ H
2
O.
(6) NaHCO
3
+ Ca(OH)
2
ăCaCO
3
+ NaOH + H
2
O.
(7) Mg(HCO
3
)
2
+ 2Ca(OH)
2
áp án: D
Fe(NO ) Fe(NO ) Fe(NO3)2