Lập phương trình hoá học, hoàn thành phương trình hoá học.
29. Fe (OH)3+HCl→ ?+ H2O
30. Mg (OH) 2+ HCl→ MgCl + ?
31. NaOH+ ? → NaCl + H2O
32. Ba (OH) 2+ HNO3→ H2O +?
33. Fe (OH) 3+ H2SO4 → ? +H2O
34. KOH+H2PO4→ K3PO4+ H2O
35. ? + CuSO4→ Na2SO4+ Cu (OH) 2
36. KOH+?→ K2SO4+ Al (OH) 3
37. Cl2+ NaOH → Nacl + NaClO+ H2O
38. NaOH + AgNO3 → NaNO3+ Ag2O + H2O
39. Fe (OH) 2+ O2→ Fe2O3+H2O
40. Fe (OH) 2 + H2O+ O2→ Fe (OH) 3
29. Fe(OH)3 + 3HCl \(\rightarrow\) FeCl3 + 3H2O
30. Mg(OH)2 + 2HCl \(\rightarrow\) MgCl2 + 2H2O
31. NaOH + HCl \(\rightarrow\) NaCl + H2O
32. Ba(OH)2 + 2HNO3 \(\rightarrow\) Ba(NO3)2 + 2H2O
33. 2Fe(OH)3 + 3H2SO4 \(\rightarrow\) Fe2(SO4)3 + 6H2O
34. 3KOH + H3PO4 \(\rightarrow\) K3PO4 + 3H2O
35. 2NaOH + CuSO4 \(\rightarrow\) Na2SO4 + Cu(OH)2
36. 6KOH + Al2(SO4)3 \(\rightarrow\) 3K2SO4 + 2Al(OH)3
37. Cl2 + 2NaOH \(\rightarrow\) NaCl + NaClO + H2O
38. 2NaOH + 2AgNO3 \(\rightarrow\) 2NaNO3 + Ag2O + H2O
39. 4Fe(OH)2 + O2 \(\rightarrow\) 2Fe2O3 + 4H2O
40. 4Fe(OH)2 + 2H2O + O2 \(\rightarrow\) 4Fe(OH)3