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。
题目The term "alloy" refers to a substance that is ___. A. A mixture of two or more metals B. A pure metal C. A non-metallic element D. A mixture of a metal and a non-metallic E. lement 相关知识点: 试题来源: 解析 A 反馈 收藏 ...
So, is copper a pure substance or a mixture?Yes, copper is a pure substance as copper has definite properties. It is made up of only one kind of atom. A substance having one or more atoms in the same proportion throughout the substance is a pure substance. It is a d-block metal wi...
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...
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: ...
aIdentification of the product 产品的证明[translate] aproduct Identification 产品识别[translate] ain case of pure product or substance, it is the mere chemical denomination of the commercialized product. 在纯净的产品或物质的情况下,它是商业化的产品的仅仅化工衡量单位。[translate]...
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 ...
they provide communic they provoke blue flu they put a knife in m they raised their voi they re a mixture they re alive they re all fact they re all here they re finally back they re muttering they re not pricks they re okay they re starving her they requireed to hol they respected...
刷刷题APP(shuashuati.com)是专业的大学生刷题搜题拍题答疑工具,刷刷题提供An element is a pure chemical substance consisting of one type of atom distinguished by its , which is the number of protons in its nucleus.的答案解析,刷刷题为用户提供专业的考试题库