02--物物质类型,元素,化合物,混合物Types of Matter_ Elements, Compounds, and Mixtures, 视频播放量 17、弹幕量 0、点赞数 2、投硬币枚数 0、收藏人数 0、转发人数 0, 视频作者 技术侠客, 作者简介 从幼儿园到大学,超多好课都在这。持续更新中。您的关注和认可是我更
Most things that you come across in life are not pure - they are combinations of different things. When the individual components of such combinations retain their properties, we have a mixture. Because mixtures are physical combinations of elements and compounds, they can be separated through phys...
Mixtures: •Each substance in a mixture keeps its identity •You can physically separate them •They also contain elements, compounds, or both •And they can be formed using any ratio of components Mixtures may be homogeneous or heterogeneous • The prefix “homo” indicates the same ...
Elements,compoundsandmixtures WHATISANELEMENT?Anelementis…•materialmadeofjustonetypeofatom •Asubstancethatcannotbeseparatedorbrokendownintosimplersubstancesbychemicalmeans Whatarethe3mostabundantelementsthatmakeuptheearth?•Oxygen•Iron•silicon answer Compositionoftheearth Whatare3mostcommonelementsthat...
The molar volumes of stoichiometric mixtures of Group I–III metals and Group V–VII nonmetals are compared with the molar volumes of MX compounds. The derivatives of the B-subgroup metals have the molar volumes larger than the mixtures. The compounds of A-subgroup metals have smaller volumes ...
Elements Definitionofanelement: Anelementisapuresubstancewhich cannotbesplitupintotwoormore simplersubstancesbychemical means. Sugarisnotanelementasitcanbe brokendownintocarbonandwater. Notethatanelement: •Consistsofonlyonekindofatom, •Cannotbebrokendownintoasimpler ...
cup is both a compound and a solution. D.It looks the same throughout like a true solution, yet it always has the same amount of each component. E. The coffee in the cup is a heterogeneous solution not homogeneous because it contains distinct, different compounds dissolved to make coffee....
Learn about mixtures of elements and compounds, understand how a compound differs from a mixture, and view examples of mixtures found in everyday life. Related to this Question Which of the following are mixtures? a. Air (mostly N2 and O2) b. S...
Mixtures, Elements, Compounds Scientists like to classify things. One way that scientists classify matter is by its composition. Ultimately, all matter can be classified as mixtures, elements, and compounds. Why isn’t it a good idea to classify matter by its phases? Because one kind of substa...
compounds是化合物,mixtures是混合物,化合物是纯净物,而混合物不是纯净物,如H2O是compound,而盐水是mixture