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金属活动性顺序K、Ca、Na、Mg、Al、Zn、Fe、Sn、Pd、(H)、Cu、Hg、Ag、Pt、Au是中考中经常涉及到的一个知识内容,在命题时通常从金属活动性的运用和通过实验现象判断金属活动性等角度来命题。类型一、通过实验现象判断金属的活动性顺序在金属活动性顺序中,一般情况下氢前的金属能置换出酸中的氢,位置越靠前,反应越剧烈,而氢后的金属和稀硫酸或稀盐酸是不反应的。位置在前的金属能把后面的金属从其可溶性的盐溶液中置换出来。由此我们可以根据几种金属与酸反应
The order of activity of metals K, Ca, Na, Mg, Al, Zn, Fe, Sn, Pd, H, Cu, Hg, Ag, Pt and Au are often a knowledge content in the test. From the use of metal activity and through the experimental phenomena to determine the activities of metal from the perspective of propositions. Type 1, determine the order of the activity of the metal through the experimental phenomenon In the sequence of metal activity, under normal circumstances the hydrogen metal can be replaced by the hydrogen in the acid, the more front position, the reaction is more intense, and hydrogen after the metal and thin Sulfuric acid or dilute hydrochloric acid is not reactive. The leading metal displaces the back metal from its soluble salt solution. From this we can react with acids according to several metals