mixture混合物colloidsoluteparticlessubstances 40 Science Alive for VELS Level 5 What is a mixture? lthough the air we breathe seems like a single, or pure, substance, it is actually a mixture of many substances. Air consists of nitrogen, oxygen, carbon dioxide and other gases. Like air, al...
What is the difference between a pure substance and a mixture:一种纯物质和混合物的区别是什么a,A,be,Pure,and,pure,what,the,纯物质,What 文档格式: .ppt 文档大小: 218.5K 文档页数: 11页 顶/踩数: 0/0 收藏人数: 0 评论次数: 0 文档热度: ...
the other substance D. others substance 相关知识点: 试题来源: 解析 B substance作“物质”讲时是可数名词。句意:一种物质如果没有和其他的物质混合,它就是一种纯的物质。根据语境可知,这里的“物质”应该是泛指而不是特指。所以,A、C两个选项都不对。而D项的表达本身就是错误的。反馈 收藏 ...
the other substance D. others substance 相关知识点: 试题来源: 解析 B substance作“物质”讲时是可数名词。句意:一种物质假如没有和其他的物质混合,它确实是一种纯的物质。依照语境可知,那个地点的“物质”应该是泛指而不是特指。因此,A、C两个选项都不对。而D项的表达本身确实是错误的。
Which one of the following is a pure substance? A. concrete B. wood C. saltwater D. elemental copper E. milk 点击查看答案
what is pure substand and mixture?相关知识点: 试题来源: 解析 a pure substance consists of ONLY one substance;while a mixture consists of more than one substance. 分析总结。 扫码下载作业帮拍照答疑一拍即得答案解析查看更多优质解析举报apuresubstanceconsistsofonlyonesubstance...
Is a diamond classified as a pure substance, a pure element, a homogeneous mixture, or a heterogeneous mixture? Mixture: A mixture is stated as a type of physical combination that comprises substances whose identities are retained. These substances can be ...
Mixtures Definition - A mixture contains two or more elements or compounds that are not chemically combined together. To learn about Homogeneous and Heterogeneous mixtures click here.
An ___ is a pure substance made of only one type of atom. 反馈 收藏 有用 解析 免费查看答案及解析 本题试卷 化学用语填空练习题 5399人在本试卷校对答案 18 4页 每天0.1元解锁完整试卷 最低仅¥0.1 思路解析 本题详解 Element 开学特惠 开通会员专享超值优惠 助力考试高分,解决学习难点 新客低价...
百度试题 结果1 题目It's not a pure substance, () it is made of different substances.A.lthoughB.ecause 相关知识点: 试题来源: 解析 B 反馈 收藏