5克氧化镁与足量 稀盐酸反应,生成0.4氢气,镁带中单质镁质量分数为多少
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![5克氧化镁与足量 稀盐酸反应,生成0.4氢气,镁带中单质镁质量分数为多少](/uploads/image/z/3038561-17-1.jpg?t=5%E5%85%8B%E6%B0%A7%E5%8C%96%E9%95%81%E4%B8%8E%E8%B6%B3%E9%87%8F+%E7%A8%80%E7%9B%90%E9%85%B8%E5%8F%8D%E5%BA%94%2C%E7%94%9F%E6%88%900.4%E6%B0%A2%E6%B0%94%2C%E9%95%81%E5%B8%A6%E4%B8%AD%E5%8D%95%E8%B4%A8%E9%95%81%E8%B4%A8%E9%87%8F%E5%88%86%E6%95%B0%E4%B8%BA%E5%A4%9A%E5%B0%91)
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