8 |
9 |
A.3:4:1 | B.3:4:2 | C.6:7:3 | D.6:8:3 |
A.0.057 | B.0.06 | C.0.0684 | D.0.00855 |
A.22.4% | B.25.2% | C.30.0% | D.36.0 |
A.3.2g | B.4.0g | C.4.2g | D.4.6g |
A.5.2g滤渣是由3.2g铜和2g铁组成 |
B.滤液是25%的硫酸亚铁溶液 |
C.反应过程中产生的氢气是0.286g |
D.ω=14 |
A.6.95g | B.13.9g | C.11.12g | D.8.34g |
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