摘要:下列反应中:①2NaA+B2=2NaB+A2; ②2NaA+C2=2NaC+A2; ③2NaB+C2=2NaC+B2 ④2NaC+D2=2NaD+C2,则A2.B2.C2.D2的非金属性由强到弱的顺序是 A.A2.B2.C2.D2 B.B2.A2.C2.D2 C.C2.B2.A2.D2 D.D2.C2.B2.A2

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