Question

Очень срочно!!!!помгите решит хим.цепочки.1)Al(NO3)3 - Al(OH)3 - Al2O3 - Al2)Na2O - NaOH - Na2CO3 - NaNO33)P - P2O5 - H3PO4 - K3PO4 - Ba3(PO4)24)SO3 - H2SO$ - H2 - H2S - ZnS5)Cuo - CuCl2 - Cu(OH)2 0 Cu(NO3)2

Answer 1

1) Al(NO₃)₃ + 3KOH = Al(OH)₃ + 3KNO₃ 
2Al(OH)₃ = Al₂O₃ + 3H₂O
Al₂O₃ + 2Fe = Fe₂O₃  + 2Al

2) Na₂O + H₂O = 2NaOH
2NaOH + CO₂ = Na₂CO₃ + H₂O
Na₂CO₃ + 2HNO₃ = 2NaNO₃ + H₂O + CO₂

3) 4P + 5O₂ = 2P₂O₅
P₂O₅ + 3H₂O = 2H₃PO₄
H₃PO₄ + 3KOH = K₃PO₄ + 3H₂O
2K₃PO₄ + 3BaCl₂ = Ba₃(PO₄)₂ + 6KCl

4) SO₃ + H₂O = H₂SO₄
H₂SO₄ + Zn = ZnSO₄ + H₂
H₂ + S = H₂S
H₂S + ZnCl₂ = ZnS + 2HCl

5) CuO + 2HCl = CuCl₂ + H₂O
CuCl₂ + 2NaOH = Cu(OH)₂ + 2NaCl
Cu(OH)₂ + 2HNO₃ = Cu(NO₃)₂ + 2H₂O

Answer 2

Al(NO3)3 + 3NaOH → Al(OH)3↓ + 3NaNO3
2Al(OH)3↓ → Al2O3 + 3H2O
Al2O3 + 3H2↑ → 2Al + 3H2O

Na2O + H2O = 2NaOH
2NaOH + CO2 = Na2CO3 + H2O
Na2CO3 + 2HNO3 = 2NaNO3 + H2O + CO2↑

4P + 5O2 = 2P2O5
P2O5 + 3H2O = 2H3PO4
2H3PO4 + 3K2O = 2K3PO4 + 3H2O
2K3PO4 + 3Ba(OH)2 = Ba3(PO4)2↓ + 6KOH

Answer 3

Chemical Reactions in the Given Chemical Chains

1. Al(NO3)3 - Al(OH)3 - Al2O3 - Al - The given chemical chain involves the reactions of aluminum nitrate, aluminum hydroxide, aluminum oxide, and aluminum. The reactions can be represented as follows: - Al(NO3)3 → Al(OH)3 + 3HNO3 - 2Al(OH)3 → Al2O3 + 3H2O - 4Al + 3O2 → 2Al2O3

2. Na2O - NaOH - Na2CO3 - NaNO3 - The given chemical chain involves the reactions of sodium oxide, sodium hydroxide, sodium carbonate, and sodium nitrate. The reactions can be represented as follows: - Na2O + H2O → 2NaOH - NaOH + CO2 → Na2CO3 + H2O - Na2CO3 + 2HNO3 → 2NaNO3 + H2O + CO2

3. P - P2O5 - H3PO4 - K3PO4 - Ba3(PO4)2 - The given chemical chain involves the reactions of phosphorus, phosphorus pentoxide, phosphoric acid, potassium phosphate, and barium phosphate. The reactions can be represented as follows: - P + 5O2 → P2O5 - P2O5 + 3H2O → 2H3PO4 - 2H3PO4 + 3KOH → K3PO4 + 3H2O - 3Ba(OH)2 + 2H3PO4 → Ba3(PO4)2 + 6H2O

4. SO3 - H2SO4 - H2 - H2S - ZnS - The given chemical chain involves the reactions of sulfur trioxide, sulfuric acid, hydrogen, hydrogen sulfide, and zinc sulfide. The reactions can be represented as follows: - SO3 + H2O → H2SO4 - Zn + H2SO4 → ZnSO4 + H2 - ZnSO4 + H2S → ZnS + H2SO4

5. CuO - CuCl2 - Cu(OH)2 - Cu - Cu(NO3)2 - The given chemical chain involves the reactions of copper(II) oxide, copper(II) chloride, copper(II) hydroxide, copper, and copper(II) nitrate. The reactions can be represented as follows: - CuO + 2HCl → CuCl2 + H2O - CuCl2 + 2NaOH → Cu(OH)2 + 2NaCl - Cu(OH)2 → CuO + H2O - Cu + 2HNO3 → Cu(NO3)2 + H2

These representations illustrate the chemical reactions involved in the given chemical chains.