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题目:等质量的 M、N 两种金属,分别与相同溶质质量分数的足量的稀盐酸反应(已知 M、N 在生成物中均为+2价),生成氢气的质量和反应时间的关系如下图所示。(1)M、N 两种金属中,相对原子质量较大的是__;(2)由图中的两条曲线,还可以得出的一些结论是__。(2001年安徽省中考题)
Title: Two metals of equal quality, M and N, react with a sufficient amount of dilute hydrochloric acid of the same solute mass respectively (known M and N are +2 in the product), and the quality and reaction time of hydrogen gas are generated. The relationship is shown below. (1) Among the two metals of M and N, the relative atomic mass is __; (2) From the two curves in the figure, some conclusions that can be drawn are __. (2001 Anhui Provincial Examination Questions)