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铁丝在氧气中燃烧为什么要加水
更新时间: 2020-11-19 00:00:00  

铁丝在氧气中燃烧要加水的原因是为了防止熔化物溅落瓶底,炸裂瓶子。铁丝在氧气中燃烧的现象是:铁剧烈燃烧、火星四射、放出热量,而且还会生成黑色的固体。

铁是一种金属元素,原子序数为26,铁单质化学式:Fe,平均相对原子质量为55.845。纯铁是白色或者银白色的,有金属光泽。熔点1538℃、沸点2750℃,能溶于强酸和中强酸,不溶于水。铁有0价、+2价、+3价、+4价、+5价和+6价,其中+2价和+3价较常见,+4价、+5价和+6价少见。

关键词: 铁丝 氧气 燃烧 为什么

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