Question

Lập PTHH theo các sơ đồ sau :

1) CuCl2 + NaOH - -> Cu(OH)2 + NaCl

2) Fe (NO3)3 + NaOH - -> Fe(OH)3 + NaNO3

3) P2O5 + H2O - -> H3PO4

4) Al + H2SO4 - -> Al2(SO4)3 + H2

Answer 1

1) CuCl2 + 2NaOH - -> Cu(OH)2 + 2NaCl

2) Fe (NO3)3 + 3NaOH - -> Fe(OH)3 + 3NaNO3

3) P2O5 + 3H2O - -> 2H3PO4

4) 2Al + 3H2SO4 - -> Al2(SO4)3 + 3H2

Answer 2

1) CuCl₂ + 2NaOH - -> Cu(OH)₂ + 2NaCl

2) Fe(NO3)₃ + 3NaOH - -> Fe(OH)₃ + 3NaNO₃

3) P₂O₅ + 3H₂O - -> 2H₃PO₄

4) 2Al + 3H₂SO₄ - -> Al₂(SO₄)₃ + 3H₂