Cân bằng các PTHH sau:

\(1,FeS_2+H_2SO_4--->Fe_2\left(SO_4\right)_3+SO_2+H_2O\)

\(2,Al+H_2SO_4--->Al_2\left(SO_4\right)_3+SO_2+H_2O\)

\(3,Fe_xO_y+CO--->Fe+CO_2\)

\(4,Fe\left(NO_3\right)_3+Ba\left(OH\right)_2--->Ba\left(NO_3\right)_2+Fe\left(OH\right)_3\)

\(5,C_4H_{10}+O_2--->CO_2+H_2O\)

Hãy lập PTHH và cho biết tỉ lệ số nguyên tử, phân tử các chất trong mỗi phản ứng với các sơ đồ phản ứng

a,\(NH_3+O_3\rightarrow NO+H_2O\)

b,\(S+HNO_3\rightarrow NO+H_2O\)

c,\(NO_2+O_2+H_2O\rightarrow HNO_3\)

d,\(FeCl_3+AgNO_3\rightarrow Fe\left(NO_3\right)_3+AgCl\)

e,\(NO_2+H_2O\rightarrow HNO_3+NO\)

f,\(Ba\left(NO_3\right)_2+Al_2\left(SO_4\right)_3\rightarrow BaSO_4+Al\left(NO_3\right)_3\)

Câu 1 ) A / Mg(NO₃) \(\underrightarrow{\left(1\right)}\) Mg(OH)₂ \(\underrightarrow{\left(2\right)}\) MgCl_{2\(\underrightarrow{\left(3\right)}\) KCl} \(\underrightarrow{\left(4\right)}\) KNO₃

_{B/ \(Na\underrightarrow{\left(1\right)}Na_2O\underrightarrow{\left(2\right)}NaOH\underrightarrow{\left(3\right)}Na_2SO_4\underrightarrow{\left(4\right)}NaCl\underrightarrow{\left(5\right)}NaNO_3\underrightarrow{\left(6\right)}NaCl\underrightarrow{\left(7\right)}NaOH\)}

C/\(Mg\underrightarrow{\left(1\right)}MgO\underrightarrow{\left(2\right)}MgCl_2\underrightarrow{\left(3\right)}Mg\left(NO_3\right)_2\underrightarrow{\left(4\right)}Mg\left(OH\right)_2\underrightarrow{\left(5\right)}MgSO_4\underrightarrow{\left(6\right)}MgCO_3\)

D/\(CuSO_4\underrightarrow{\left(1\right)}Cu\left(OH\right)_2\underrightarrow{\left(2\right)}CuO\underrightarrow{\left(3\right)}CuCl_2\underrightarrow{\left(4\right)}Cu\left(OH\right)_2\underrightarrow{\left(5\right)}CuSO_4\)

E/\(CuCl_2\underrightarrow{\left(1\right)}Cu\left(OH\right)_2\underrightarrow{\left(2\right)}CuSO_4\underrightarrow{\left(3\right)}Cu\underrightarrow{\left(4\right)}CuO\)

F/ \(Cu\left(OH\right)_2\underrightarrow{\left(1\right)}CuO\underrightarrow{\left(2\right)}CuCl_2\underrightarrow{\left(3\right)}Cu\left(NO_3\right)_2\underrightarrow{\left(4\right)}NaNO_3\)

G/\(Fe_2O_3\underrightarrow{\left(1\right)}FeCl_3\underrightarrow{\left(2\right)}Fe\left(OH\right)_3\underrightarrow{\left(3\right)}Fe_2O_3\underrightarrow{\left(4\right)}Fe_2\left(SO_4\right)_3\)

H/ \(ZnCl_2\underrightarrow{\left(1\right)}Zn\left(OH\right)_2\underrightarrow{\left(2\right)}ZnCl_2\underrightarrow{\left(3\right)}NaCl\underrightarrow{\left(4\right)}NaNO_3\)

M/\(CuO\underrightarrow{\left(1\right)}CuCl_2\underrightarrow{\left(2\right)}Cu\left(OH\right)_2\underrightarrow{\left(3\right)}CuO\underrightarrow{\left(4\right)}CuSO_4\)

N/\(Fe\left(OH\right)_2\underrightarrow{\left(1\right)}FeO\underrightarrow{\left(2\right)}FeCl_2\underrightarrow{\left(3\right)}Fe\left(ỌH_2\right)\underrightarrow{\left(4\right)}FeSO_4\underrightarrow{\left(5\right)}FeCl_2\underrightarrow{\left(6\right)}Fe\left(NO_3\right)_2\)

Z/ \(Mg\left(OH\right)_2\underrightarrow{\left(1\right)}MgO\underrightarrow{\left(2\right)}MgSO_4\underrightarrow{\left(3\right)}MgCl_2\underrightarrow{\left(4\right)}Mg\left(OH\right)_2\underrightarrow{\left(5\right)}MgCl_2\underrightarrow{\left(6\right)}Mg\left(NO_3\right)_2\)

X/\(Al\left(OH\right)_3\underrightarrow{\left(1\right)}Al_2O_3\underrightarrow{\left(2\right)}AlCl_3\underrightarrow{\left(3\right)}Al\underrightarrow{\left(4\right)}Al_2\left(SO_4\right)_3\)

Câu 1: Lập PTHH

a) \(H_2+CuO-^{to}->Cu+H_2O\)

b) \(O_2+.....-^{to}->Fe_3O_4\).

c)\(Na_2SO_4+BaCl_4-->BaSO_4+NaCl\)

d)\(AgNO_3+Cu-->Cu\left(NO_3\right)_2+Ag\)

e)\(Cu\left(NO_3\right)_2+Fe-->Fe\left(NO_3\right)_2+Cu\)

Câu 2 : a) Tính nồng độ mol (lít của \(d^2\)khi hòa tan 58,5 gam NaCl vào 200ml nước (thể tích dung dịch không thay đổi )?

b)Tính \(C_M\) của \(d^2\)khi hòa tan 58,5 gam NaCl vào 200 ml nước?

Câu 3: Giải thích hiện tượng cá ngột nước (đớp ko khí )vào mùa hè? 

1) \(Al\xrightarrow[]{\left(1\right)}Al_2O_3\xrightarrow[]{\left(2\right)}AlCl_3\xrightarrow[]{\left(3\right)}Al\left(OH\right)_3\)

2) \(Al\xrightarrow[]{\left(1\right)}AlCl_3\xrightarrow[]{\left(2\right)}Al\left(OH\right)_3\xrightarrow[]{\left(3\right)}Al_2O_3\)

3) \(Fe\xrightarrow[]{\left(1\right)}FeSO_4\xrightarrow[]{\left(2\right)}FeCl_2\xrightarrow[]{\left(3\right)}Fe\left(OH\right)_2\xrightarrow[]{\left(4\right)}FeO\)

4) \(Fe\left(OH\right)_2\xrightarrow[]{\left(1\right)}FeO\xrightarrow[]{\left(2\right)}FeSO_4\xrightarrow[]{\left(3\right)}FeCl_2\xrightarrow[]{\left(4\right)}Fe\left(OH\right)_2\)

5) \(Fe\xrightarrow[]{\left(1\right)}FeCl_2\xrightarrow[]{\left(2\right)}Fe\left(NO_3\right)_2\xrightarrow[]{\left(3\right)}Fe\left(OH\right)_2\xrightarrow[]{\left(4\right)}FeSO_4\)

6) \(Fe\xrightarrow[]{\left(1\right)}FeCl_3\xrightarrow[]{\left(2\right)}Fe\left(OH\right)_3\xrightarrow[]{\left(3\right)}Fe_2\left(SO_4\right)_3\xrightarrow[]{\left(4\right)}FeCl_3\)

7) \(Fe\left(NO_3\right)_3\xrightarrow[]{\left(1\right)}Fe\left(OH\right)_3\xrightarrow[]{\left(2\right)}Fe_2O_3\xrightarrow[]{\left(3\right)}Fe\xrightarrow[]{\left(4\right)}FeCl_3\)

8) \(Fe_2\left(SO_4\right)_3\xrightarrow[]{\left(1\right)}Fe\left(OH\right)_3\xrightarrow[]{\left(2\right)}Fe_2O_3\xrightarrow[]{\left(3\right)}Fe_2\left(SO_4\right)_3\xrightarrow[]{\left(4\right)}FeCl_3\)

\(?+O_2->Al_2O_3\\ Fe+?->FeCl_3\\ Na+H_2O->NaOH+H_2\\ ?+HCl->ZnCl_2+H_2\\ C_xH_y+O_2->CO_2+H_2O\\ P_2O_5+H_2O--->H_3PO_4\)

\(Fe_2\left(SO_4\right)_3+KOH--->Fe\left(OH\right)_3+K_2SO_4\)

\(Fe+Cl_2-^{t°}-->FeCl_3\\ C_nH_{2n-2}+O_2-^{t°}-->CO_2+H_2O\\ N_2O_5+H_2O--->HNO_3\\ FeCl_3+NaOH--->Fe\left(OH\right)_3+NaCl\\ Al+Cl_2-^{t°}-->AlCl_3\)

Lập PTHH cho các sơ đồ PƯ trên

Hãy viết thành PTHH và cho biết tỉ lệ số nguyên tử, số phân tử của các chất trong mỗi PTHH lập được