氧和氧气有什么区别?为什么氧气也有符号代替(O2)?氧也有符号代替(O)?氧气是一种纯净物,
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![氧和氧气有什么区别?为什么氧气也有符号代替(O2)?氧也有符号代替(O)?氧气是一种纯净物,](/uploads/image/z/2324103-15-3.jpg?t=%E6%B0%A7%E5%92%8C%E6%B0%A7%E6%B0%94%E6%9C%89%E4%BB%80%E4%B9%88%E5%8C%BA%E5%88%AB%3F%E4%B8%BA%E4%BB%80%E4%B9%88%E6%B0%A7%E6%B0%94%E4%B9%9F%E6%9C%89%E7%AC%A6%E5%8F%B7%E4%BB%A3%E6%9B%BF%EF%BC%88O2%EF%BC%89%3F%E6%B0%A7%E4%B9%9F%E6%9C%89%E7%AC%A6%E5%8F%B7%E4%BB%A3%E6%9B%BF%EF%BC%88O%29%3F%E6%B0%A7%E6%B0%94%E6%98%AF%E4%B8%80%E7%A7%8D%E7%BA%AF%E5%87%80%E7%89%A9%2C)
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