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2 |
A.CO的燃烧热为283 kJ |
B.常温下Na与足量O2反应生成Na2O,随温度升高生成Na2O的速率逐渐加快 |
C.25℃、101 kPa下,Na2O2(s)+2Na(s)═2Na2O(s) H=-317 kJ/mol |
D.Na2O 和Na2O2阴阳离子个数比不相等 |
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2 |
A.a>b | B.a=b | C.a<b | D.无法确定 |
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2 |
1 |
2 |
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高温高压 |
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2 |
A.+80.5 kJ/mol | B.+30.0 kJ/mol |
C.-30.0 kJ/mol | D.-80.5 kJ/mol |
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