A.①④ | B.①⑤ | C.③④ | D.①②③④⑤ |
3.55g |
35.5g/mol |
0.1mol |
2 |
A.MnO2 | B.WO3 | C.Co3O4 | D.Cr2O3 |
A.70mL | B.60mL | C.50mL | D.55mL |
A.海水提溴时用SO2吸收Br2蒸气:SO2+Br2+2H2O=2HBr+H2SO4 | ||||
B.将煤气化为可燃性气体:C(s)+H2O(g)
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C.用过量NaOH溶液吸收烟气中的SO2:SO2+NaOH=NaHSO3 | ||||
D.燃煤时加入CaCO3脱硫:2CaCO3+2SO2+O2
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