admin 发表于 2024-10-5 07:05:39

【初中化学】41个实验反应的动图

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1、瓶中事先倒入了少量浓氨水,并让氨气挥发与空气混合。燃烧匙里放的东西是三氧化二铬(Cr2O3),在此起到了催化的作用。

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2、把手插入醋酸钠过饱和溶液后的现象

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3、红绿灯瓶 中的溶液加入了3种成分:氢氧化钠、D-葡萄糖和靛蓝胭脂红( ,或称酸性靛蓝)。

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4、白细胞追杀细菌

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5、铝和碘反应

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6、通过硬币运行高压电

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7、将油墨投进煤油后的变化…

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8、当硼砂溶于热水中时,会达到饱和状态。当水冷却后,硼砂就会以晶体的形式析出,也就是“结晶”。从而达到水晶一样的效果。

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9、魔性之环:平皿薄层上的B-Z反应(-反应)

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10、水下花园:硅酸钠的水溶液中加入一些金属盐类的结晶颗粒(例如铜盐、钴盐等)

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11、干冰与镁:镁条点燃后放在干冰当中,反应式:2Mg +CO2 → 2MgO + C,反应发出耀眼的强光。

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12、实验室中制造的翻滚的云,可以看到在面板上凝结的呈六边形的密集水滴

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13、水滴入沙子中

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14、爆竹爆炸慢放

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15、燃烧汞产生硫氰化物

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16、醋酸钠瞬间结冰

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17、酱油里的氯化钠会引起乌贼的肌肉痉挛

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18、 重铬酸铵分解

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19、金属锂燃烧

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20、发光的氨氧化

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21、醋酸钠的结晶

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22、蜡烛重燃(冒着白烟是固体蜡烛小颗粒蒸汽、可燃)

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23、硫化氢燃烧

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24、甘氨酸 - 硝酸盐和硝酸钡、硝酸锆和氧化钇的硝酸盐

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25、火柴燃烧

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26、 比重比空气还大的六氟化硫

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27、浓硫酸加入对硝基苯

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28、 液氮和乒乓球

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29、 过氧化氢+碘化钾

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30、 人造雪花(聚丙烯酸酯钠水)

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31、超冷水接触到冰立刻凝固

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32、铁棒置换硫酸铜

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33、碘钟反应(跟倒水没关系,变色反应有个周期,还能变回来)

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34、氢气+火

为氢气遇到火,氢气易燃易扩散,在空气中可以爆炸式燃烧。看看这辆飞跃火海的遥控车!有木有大片即视感!

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35、水+液氮

这腾腾升起的蘑菇云,当然不是核弹爆炸!只是液氮与水的激烈接触!

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36、金属铯+水

小编跟你讲,这个太危险,未成年不要轻易去玩,成年人也表调皮,全年龄限制!

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37、铯+氟气

把最活泼的金属铯与最活泼的非金属氟气放在一起!美不美!

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38、二乙基锌+空气

龙为何会喷火?其实喷的不是火,是二乙基锌!二乙基锌遇空气自燃!

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39、氯酸钾+糖

需要火箭原料吗?

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40、三碘化氮

轻轻一碰就爆炸,想想诺贝尔当年也是蛮拼的~~~

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41、锶+硫磺

亮瞎了~~~

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