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2022年初中化学关于合金知识点
2022-09-14'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 合金(几千种)：由一种金属跟其他一种或几种金属(或金属与非金属)一起熔合而成的具有...
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2022年初中化学金属的物理性质
2022-09-14'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 金属的物理性质 (1)常温下一般为固态(汞为液态)，有金属光泽。(2)大多数呈银白色(铜为...
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2022年初中化学纯金属材料
2022-09-14'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 纯金属材料：纯金属(90多种)...
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2022年初中化学金属资源的保护和利用
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2022年初中化学金属活动顺序
2022-09-14'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})();...
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2022年初中化学关于合金
2022-09-14'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})();...
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2022年初中化学金属之最
2022-09-14'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})();...
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2022年初中化学判断金属与盐溶液是否发生置换反应
2022-09-14'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 判断金属与盐溶液是否发生置换反应 反应条件： ①反应物中单质金属要排在盐中金属元...
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2022年初中化学判断金属和酸是否可以发生置换反应
2022-09-14'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 判断金属和酸是否可以发生置换反应 反应条件： ①排在氢前面的金属才能置换酸中的氢...
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2022年初中化学金属活动顺序及应用
2022-09-14'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 【金属活动性顺序定义】 指的是金属的活跃性，代表了金属的反应活性。 【金属活动性...