【北京课改版】九年级化学上：第5章第2节《物质组成的表示—化学式》教案

-1-/4-1(1)(2)(3)2(1)(2)3(1)(2)(3)12[]()HONSPCClNaMgAlCuZnArHeNeAgHgKCa[][][][][]H2OO2SO2[]1[][][]2[]H2O-2-/4[]1H2O2H2O13H2O4H2O121(NaClMgOO2ArCu)[][]3[]H2HH22H2[][]H12H2H212H22[]nn[]O2OO22O2CO22CO2[][][][]1(Mr)[][][]-3-/4123[][]2(1)[]SO2[]SO232162=64[]123[]H2OO2NaClNaOHCu()[][][](2)[]MnO255162=5532=1.71[]()H2OCO2SO2NaNO3KCl[][](3)[][][]=100[]NH4NO3NH4NO3-4-/4NH4NO3=141414163=80N=[]CO2C()C=100[][][]1M()M2O3()AMCl2BMCl3CM2Cl3DMCl2(NaBrO3)()A5B4C3D531________2________3________1B2D3O22S