A.CH3COOH在水中电离:CH3COOH═H++CH3COO- | ||||
B.金属Na投入水中:2Na+2H2O═2Na++2OH-+H2↑ | ||||
C.乙酸与乙醇发生酯化反应:CH3COOH+C2H5OH
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D.CaCO3高温分解的热化学方程式:CaCO3
|
浓硫酸 |
加热 |
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A.2:7 | B.3:8 | C.1:2 | D.1:4 |
A.1:2 | B.1:3 | C.3:2 | D.1:1 |
A.40g | B.30g | C.20g | D.16g |
A.2.5a×10-4 | B.a×10-4 | C.7.5a×10-4 | D.a×10-3 |
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