Bài 1 : Chuỗi phản ứng :
a) \(Al\xrightarrow[]{\left(1\right)}Al_2O_3\xrightarrow[]{\left(2\right)}AlCl_3\xrightarrow[]{\left(3\right)}Al\left(OH\right)_3\)
b) \(Al\xrightarrow[\left(1\right)]{}Al_2O_3\xrightarrow[]{\left(2\right)}AlCl_3\xrightarrow[\left(3\right)]{}Al\left(OH\right)_3Al_2O_3\)
c) \(Fe\xrightarrow[]{\left(1\right)}FeSO_4\xrightarrow[]{\left(2\right)}FeCl_2\xrightarrow[]{\left(3\right)}Fe\left(OH\right)_2\xrightarrow[]{\left(4\right)}FeO\)
d) \(Zn\xrightarrow[]{\left(1\right)}ZnSO_4\xrightarrow[]{\left(2\right)}ZnCl_2\xrightarrow[]{\left(3\right)}Zn\left(OH\right)_2\xrightarrow[]{\left(4\right)}ZnO\)
e) \(Mg\left(OH\right)_2\xrightarrow[]{\left(1\right)}MgCl_2\xrightarrow[]{\left(2\right)}Mg\left(NO_3\right)_2\xrightarrow[]{\left(3\right)}Mg\left(OH\right)_2\xrightarrow[]{\left(4\right)}MgO\)
f) \(Fe\left(OH\right)_2\xrightarrow[]{\left(1\right)}FeO\xrightarrow[]{\left(2\right)}FeSO_4\xrightarrow[]{\left(3\right)}FeCl_2\xrightarrow[]{\left(4\right)}Fe\left(OH\right)_2\)
g) \(Fe\xrightarrow[]{\left(1\right)}FeCl_2\xrightarrow[]{\left(2\right)}Fe\left(NO_3\right)_2\xrightarrow[]{\left(3\right)}Fe\left(OH\right)_2\xrightarrow[]{\left(4\right)}FeSO_4\)
h) \(S\xrightarrow[]{\left(1\right)}SO_2\xrightarrow[]{\left(2\right)}SO_3\xrightarrow[]{\left(3\right)}H_2SO_4\xrightarrow[]{\left(4\right)}SO_2\)
k) \(Cu\xrightarrow[]{\left(1\right)}CuO\xrightarrow[]{\left(2\right)}CuSO_4\xrightarrow[]{\left(3\right)}Cu\left(NO_3\right)_2\xrightarrow[]{\left(4\right)}Cu\left(OH\right)_2\)
Bài 2 : Phân biệt các chất rắn
a) Hai chất rắn: \(Cao\) và \(P_2O_5\)
b) Hai chất rắn: BaO và \(P_2O_5\)
c) Hai chất rắn :\(Na_2O\) và \(P_2O_5\)
d) Hai chất rắn :\(K_2O\) và \(P_2O_5\)
e) Ba chất rắn : MgO, \(Na_2O\), \(P_2O_5\)
GIÚP MINH VỚI Ạ !!!!
A: FeS2
B: SO2
C: SO3
D: H2SO4
E: CaSO3
F: Ca(HSO3)2
G: Br2
PTHH:
\(\left(1\right)4FeS_2+11O_2\xrightarrow[]{t^o}2Fe_2O_3+8SO_2\uparrow\\ \left(2\right)2SO_2+O_2\xrightarrow[V_2O_5]{t^o}2SO_3\uparrow\\ \left(3\right)SO_3+H_2O\rightarrow H_2SO_4\\ \left(4\right)2H_2SO_{4\left(đặc,nóng\right)}+Cu\rightarrow CuSO_4+SO_2\uparrow+2H_2O\\ \left(5\right)SO_2+Ca\left(OH\right)_2\rightarrow CaSO_3\downarrow+H_2O\\ \left(6\right)CaSO_3+SO_2+H_2O\rightarrow Ca\left(HSO_3\right)_2\)
\(\left(7\right)Ca\left(HSO_3\right)_2\xrightarrow[]{t^o}CaSO_3\downarrow+SO_2\uparrow+H_2O\\ \left(8\right)SO_2+Br_2+2H_2O\rightarrow H_2SO_4+2HBr\uparrow\)