本文目录一览:
- 1、合金是混合物还是纯净物?以铁合金为例,说明合金属于哪一类
- 2、合金是纯净物还是混合物
- 3、合金是不是混合物?
- 4、合金是混合物还是化合物?
- 5、合金是混合物还是纯净物
合金是混合物还是纯净物?以铁合金为例,说明合金属于哪一类
一般是混合物,如铝镁合金,青铜……等金属合金,但是也有化合物的合金多为金属与非金属的合金。
可以这样说,有确定的组成和化学式的合金是纯净物,如生铁中往往含有的FeC3就是一种纯净物。而多数合金没有确定的组成和化学式,那就是混合物。
合金是纯净物还是混合物
合金的分类:
①相互溶解,形成金属固溶体,如铜锌形成的黄铜合金;
②相互起化学作用,形成金属化合物,如铝钛合金;
③相互混合,形成机械混合物,如焊锡.
很明显①③属于混合物,②属于纯净物.所以合金是不是混合物,不能一概而论.
合金是不是混合物?
当然是,由多种物质混合而成的就是混合物。而且合金一般硬度大于各组成金属,而熔点小于各组成金属。
合金是混合物还是化合物?
合金分为以下三种:
1、金属固溶物:这种合金类似为溶液,是一种金属分散到另一种金属中形成的,这种合金是混合物;
2、金属化合物:又叫金属互化物,这种合金中,组成合金的金属有固定的比值,你说的镧镍合金可能就是这种,这种可以看成是化合物;
3、低共熔化合物:是两种金属的非均匀混合物。只有各种金属按特定比例才能形成。
合金是混合物还是纯净物
合金属于混合物。
在金属中加热熔合某些金属或非金属制成具有金属特性的物质,就是合金。
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