2016年湖南省长沙市中考化学试卷(含答案)

201615453132016?ABCD232016?ABCD332016?ABCD432016?ABCD532016?ABCD632016?SO2XSO22X+2SO2+O22CaSO4+2CO2XAH2OBNa2CO3CCaODCaCO3732016?ABCD832016?ABCD932016?ABCD1032016?ZnFeAgABCD1132016?ABCD1232016?ABCD1332016?At1BCt2t1Dt2t11432016?ABCDAABBCCDD1532016?A18BCD201642016?l21742016?1862016?121962016?12(23211)2062016?MgCl2CaCl21a2b32152016?ABCDEFGABDFCGEBFDCGEBDCEFGAF1F2CG2182262016?1C23NH31723122016?Na2CO3NaClNa2CO312CO2ACO2BC3CO262462016?68g2g68.4g1g220161D2B3A4B5A6D7C8A9B10C11D12C13A14D15B161P2MgO171731812H2+O22H2O2HCl+NaOHNaCl+H2O191220123211Fe2O32CaCO3+2HClCaCl2+H2O+CO22212C3AD2312B36241=68g+2g68.4g=1.6g21.6gH2O2x2H2O22H2O+O26832x1.6g=x=3.4g=100%=5%5%11.625%