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2H2O = 2H2 + O2 化學方程式
根據生成的氫氣與氧氣的體積比是2:1,根據m=ρv,可知氫氣和氧氣的質量比是:0.089g/L×2 1.43g/L×1=1 8 答:氫氣和氧氣的質量比是1 8.
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