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Watch Later 8:18

化學教室-第20章-8-空氣污染

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Chemistry tutorial-Ch20-7-Heat change during of hydrocarbons

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Chemistry tutorial-Ch20-6-Major uses of petroleum fractions

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Chemistry tutorial-Ch20-5-Fractional distillation of petroleum in the school laboratory

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化學教室-第20章-7-燃燒烴的熱變化

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化學教室-第20章-6-各石油餾分的主要用途

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化學教室-第20章-5-在學校實驗室進行石油提煉

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化學教室-第11章-5-金屬與稀氫氯酸和稀硫酸的反應

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F4_化學_16-4量度溶液的pH值

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