有一包黑色粉末4.8克,它是由CUO和木炭粉混合而成,现将它装入大试管中,加热至完全反应,冷却冷却后称得固体质量减少0.825克,则原混合物中CUO的质量为 A、95.3% B、90.6%C、62.5%D、无法确定【
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/11 16:30:54
![有一包黑色粉末4.8克,它是由CUO和木炭粉混合而成,现将它装入大试管中,加热至完全反应,冷却冷却后称得固体质量减少0.825克,则原混合物中CUO的质量为 A、95.3% B、90.6%C、62.5%D、无法确定【](/uploads/image/z/6251166-54-6.jpg?t=%E6%9C%89%E4%B8%80%E5%8C%85%E9%BB%91%E8%89%B2%E7%B2%89%E6%9C%AB4.8%E5%85%8B%2C%E5%AE%83%E6%98%AF%E7%94%B1CUO%E5%92%8C%E6%9C%A8%E7%82%AD%E7%B2%89%E6%B7%B7%E5%90%88%E8%80%8C%E6%88%90%2C%E7%8E%B0%E5%B0%86%E5%AE%83%E8%A3%85%E5%85%A5%E5%A4%A7%E8%AF%95%E7%AE%A1%E4%B8%AD%2C%E5%8A%A0%E7%83%AD%E8%87%B3%E5%AE%8C%E5%85%A8%E5%8F%8D%E5%BA%94%2C%E5%86%B7%E5%8D%B4%E5%86%B7%E5%8D%B4%E5%90%8E%E7%A7%B0%E5%BE%97%E5%9B%BA%E4%BD%93%E8%B4%A8%E9%87%8F%E5%87%8F%E5%B0%910.825%E5%85%8B%2C%E5%88%99%E5%8E%9F%E6%B7%B7%E5%90%88%E7%89%A9%E4%B8%ADCUO%E7%9A%84%E8%B4%A8%E9%87%8F%E4%B8%BA+A%E3%80%8195.3%EF%BC%85+B%E3%80%8190.6%EF%BC%85C%E3%80%8162.5%EF%BC%85D%E3%80%81%E6%97%A0%E6%B3%95%E7%A1%AE%E5%AE%9A%E3%80%90)
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