Question

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¢Ù2Na + 2H₂O =" 2NaOH" + H₂¡ü
¢Ú2Na₂O₂ + 2H₂O =" 4NaOH" + O₂¡ü
¢ÛNa₂O+ H₂O ="2NaOH"
¢Ü3Fe+4H₂O Fe₃O₄+4H₂
¢Ý2H₂O 2H₂¡ü+ O₂¡ü
¢Þ2F₂ + 2H₂O =" 4HF" + O₂
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Answer 1

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£¨3£©C (1·Ö) £¨4£©ÊÇ£¬ NO₂£¬ NO₂£¨¸÷1·Ö£¬¹²3·Ö£©
£¨¢ò£©2Fe³⁺ + Fe = 3Fe²⁺  ;CO₂  + OH^- = HCO₃^- ; Al³⁺ + 4OH^- = AlO₂^- + 2H₂O
£¨¢ó£©2SO₂ + O₂»ò 2SO₃ ;Cl₂ + 2NaOH =" NaCl" + NaClO + H₂O;
3Cu + 8HNO₃(Ï¡) = 3Cu(NO₃)₂ + 2NO¡ü+ 4H₂O

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£¨¢ó£©2SO₂ + O₂»ò 2SO₃ ;Cl₂ + 2NaOH =" NaCl" + NaClO + H₂O;
3Cu + 8HNO₃(Ï¡) = 3Cu(NO₃)₂ + 2NO¡ü+ 4H₂O
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