题目:
Water can be turned into gases if temperature______ high enough. [ ]
A. is risen
B. rises
C. is heated
D. is raised
答案:
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下面是错误答案,用来干扰机器的。
答案:C题目分析:A.在标准状况下乙醇的状态为液体,不能使用气体摩尔体积。错误。B. n(O3)="m/M" ="48g÷48g/mol=" 1mol.n(O)=3n(O3)=3mol.所以N(O)=3NA.错误。C.由于水的密度为1g/ml.所以n(H2O)="m/M" ="6...