某同学设计了用锌粒与稀硫酸反应制取氢气的实验装置如图所示.1检查装置气密性后先在有孔�料板上加锌粒锌粒然后通过长颈漏斗倒入稀硫酸通过 Template




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tomski某同学设计了用锌粒与稀硫酸反应制取氢气的实验装置如图所示.1检查装置气密性后先在有孔�料板上加锌粒锌粒然后通过长颈漏斗倒入稀硫酸通过 coloring