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dan8122008
2 năm trước
1,viết PTHH khi cho dd HCL lần lượt tác dụng với a,MG b,Fe(OH)3 c,ZnO đ,K2O e,Ca(OH)2 2,cho các chất sau:SO2,CuO,Na2O,Cao,CO2 Viết các PTHH a, những chất tác dụng với H2O b,những chất tác dụng với HCL c,những chất tác dụng với NaOH
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