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baoh28h2o和nh4cl
如何上好初三第一节化学课
答:
H2S+H2SO4(浓)===S+SO2+2H2O 3H2S+2HNO(稀)===3S+2NO+4H2O 5H2S+2KMnO4+3H2SO4===2MnSO4+K2SO4+5S+
8H2O
3H2S+K2Cr2O7+4H2SO4===Cr2(SO4)3+K2SO4+3S+7H2O H2S+4Na2O2+2H2O===Na2SO4+6NaO
H 2
NH3+3CuO===3Cu+N2+3H2O 2NH3+3Cl2===N2+6HCl 8NH3+3Cl2===N2+6
NH4C
...
棣栭〉
<涓婁竴椤
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