摘要：26． (1) Na+ [ ]2-Na+ (2)OH-+HS-=S2-+H2O +1/2H2SO4(aq)=1/2Na2SO4(aq)+H2O(1),△H=-57.3kJ/mol (4)S+3Cl2+4H2O=H2SO4+6HCl 27．H2O N2 HCl4NH3+5O2 4NO+6H2O (3)取少量Z于试管中.用胶头滴管滴入NaOH溶液可观察到试管口处润湿的红色石蕊试纸变蓝 (4)AgN3

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