相关试题
③CH3Cl ④P4 ⑤H2S已知1g火箭燃料肼（N2H4）气体燃烧生成N2和H2O（g）时，放出16.7kJ的热量，则该反应的热化学方程式正确的是( )
| A．N2H4+O2=N2+2H2O△H= —534.4kJ/mol |
| B．N2H4(g)+ O2(g)=N2(g)+2H2O(g)△H = —16.7kJ/mol |
| C．N2H4(g)+O2(g)=N2(g)+2H2O(l)△H = —534.4kJ/mol |
| D．N2H4(g)+O2(g)=N2(g)+2H2O(g)△H = —534.4kJ/mol |
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