A Complete Collection of 100000 Whys
Fav十万个为什么
为什么有些物质不会燃烧？
1、缺乏可燃成分：燃烧需要燃料，有些物质如石头、玻璃等不含碳氢化合物等可燃成分，因此无法燃烧。
2、没有氧气：燃烧需要氧气作为助燃剂，有些物质在真空中或缺乏氧气的环境中无法燃烧。
3、能量不足：燃烧需要达到一定的点火温度，有些物质需要极高的温度才能燃烧，在常温下不会自燃。
4、化学性质稳定：有些物质的化学键非常稳定，如惰性气体（如氦、氖），不易与其他物质发生化学反应，因此不会燃烧。
5、缺乏催化剂：燃烧过程中需要催化剂来加速反应，有些物质缺乏催化剂，燃烧反应难以进行。
总之，物质不燃烧的原因包括缺乏可燃成分、没有氧气、能量不足、化学性质稳定以及缺乏催化剂，这些因素共同决定了物质是否能够燃烧。
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