把铁片投入到下列溶液中,铁片溶解,固体质量增加,且无气体产生的是()A、AgNO3B、Fe2(SO4)3C、稀HNO3D、冷浓H2SO4...
Friday, January 12, 2024
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在氢氧化稀土氧化提铈过程中,为什么有硫酸根离子存在时,铈的氧化率会提高?...
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下列各组物质相互作用能产生气体的是()A、Fe和FeCl3溶液B、H2S溶液和FeCl3溶液C、Al和NaOH溶液D、Fe和CuSO4溶液...
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萃取体系一般用“被萃取物(起始浓度范围)/水相组成/()”表示。...
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下列制配单质的反应中,化合物作还原剂的是()A、锌和硫酸反应制配氢气B、溴和碘化钠反应制配碘C、在电炉中碳和二氧化硅反应制配硅D、铝和二氧化锰反应冶炼锰...
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