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金属与金属矿物是初中化学的重要内容,教材比较系统地介绍了有关金属的化学知识,历年各地化学中考围绕“金属(材料)”考点编制了许多经典试题,仔细审视这类试题发现其考查重点突出,主要体现在以下几个方面:一、考查学生对合金、金属材料等核心概念的理解,对金属常识性知识的积累例1(2014年广东广州)下列关于金属材料的说法中,不正确的是A.生铁、硬铝、焊锡都属于合金B.铜有良好的导电性,因而大量用于制作电线
Metals and metal minerals is an important part of junior high school chemistry, teaching materials more systematically introduced the chemical knowledge of the metal, chemical test around the years around the “metal (material) ” test preparation many classic questions, examine these questions carefully found Examine the key highlights, mainly in the following aspects: First, examine students’ understanding of the core concepts of alloys, metal materials, accumulation of common sense knowledge of metal Example 1 (Guangzhou, Guangdong 2014) In the following statement about metal materials, Incorrect is A. pig iron, duralumin, solder belong to the alloy B. Copper has good conductivity, which is widely used in the production of wire