(8分)(1)SiO 2 + 2NaOH = Na 2SiO 3+ H 2O (2)Al 2O 3+2NaOH= 2NaAlO 2+H 2O
(3)4Fe(OH) 2+ O 2+ 2H 2O=4Fe(OH) 3
(4)MnO 2 + 4HCl (浓)
MnCl 2 + Cl 2↑+ 2H 2O
(5)24 FeSO 4+ 30 HNO 3 =8Fe(NO 3) 3+8 Fe 2(SO 4) 3+3 N 2O↑+ 15 H 2O
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(8分)(1)SiO 2 + 2NaOH = Na 2SiO 3+ H 2O (2)Al 2O 3+2NaOH= 2NaAlO 2+H 2O
(3)4Fe(OH) 2+ O 2+ 2H 2O=4Fe(OH) 3
(4)MnO 2 + 4HCl (浓)
MnCl 2 + Cl 2↑+ 2H 2O
(5)24 FeSO 4+ 30 HNO 3 =8Fe(NO 3) 3+8 Fe 2(SO 4) 3+3 N 2O↑+ 15 H 2O
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