UC知道几道英文版的化学题
来源：百度知道 编辑：UC知道 时间：2024/05/07 16:54:40
1.In a laboratory experiment, students are asked to determine the ralative amounts of benzoic acid and charcoal in a solid mixture. Benzoic acid is relatively soluble in hot water, but charcoal is not. Devise a method for separating the two components of this mixture.
2.Discuss the similarities and differences between a liquid and a gas.
P.S: 铁是混合物吗？
3.Explain the differences among solids, liquids, and gases both macroscopically and microscopically.
2.Discuss the similarities and differences between a liquid and a gas.
P.S: 铁是混合物吗？
3.Explain the differences among solids, liquids, and gases both macroscopically and microscopically.
1.在实验室进行实验，学生们被要求在固态混合物中确定的苯甲酸和木炭相对质量。苯甲酸能溶于热水，但木炭不溶。制订这一混合物分离的两种方法。
2.讨论液体和气体的相似性和差异性。
P.S：铁是混合物吗？
3.在宏观和微观两方面解释固体，液体和气体之间的差异