A.4g镁和1g氧气发生反应生成5g氧化镁 |
B.3g镁和2g氧气反应生成5g氧化镁 |
C.2.5g镁与2.5氧气反应生成5g氧化镁 |
D.2g镁和3g氧气反应生成5g氧化镁 |
| ||
A.35% | B.3.25% | C.65% | D.56% |
A.
| B.
| C.
| D.
|
A.1:1:2 | B.2:2:3 | C.1:1:3 | D.1:1:1 |
A.0.1g | B.0.2g | C.2.7g | D.2.0g |
A.镁2g、氧气3g | B.镁3g、氧气2g |
C.镁1g、氧气4g | D.镁4g、氧气1g |
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