The main classifications of matter include the categories element and compound, either of which may also be called a substance (which is a less specific term), and mixture, of which there are also many sub-categories.Definition of a (Chemical) Mixture:...
分析句子可知,What the plants pump through the air(植物在空气中所释放出的东西)是主语从句,a mixture of chemicals(一种化学混合物)是表语,known as volatile organic compounds(称为挥发性有机化合物),VOCs for short(简称VOCs)是volatile organic compounds的同位语。故翻译为:植物在空气中所释放出的是一种被...
Mixtures may be categorized as either homogeneous or heterogeneous. Ahomogeneousmixture has a uniform composition that doesn't readily separate. Every part of a homogeneous mixture has the same properties. In a homogeneous mixture, there is typically a solute and a solvent, and the resulting substan...
v. made (mād), mak·ing, makes v.tr. 1. To cause to exist or happen; bring about; create: made problems for us; making a commotion. 2. To bring into existence by shaping, modifying, or putting together material; construct: make a dress; made a stone wall. 3. To form by asse...
A 50:50 mixture of two enantiomers of any optically active compound is called a racemic mixture. It is always optically inactive since rotation caused by the molecules of one enantiomer is exactly cancelled by equal and opposite rotation caused by the mo
It makes sense that it is so effective–lots of endorphins are released into your body when you shake it! Art therapy can be a mixture of drawing, colouring, painting, sculpting and pretty much everything else you can think of that is artistic. These are all things people love to do as...
→mixture n.混合物 7.mercy n.怜悯 → merciful adj.仁慈的 8.possess vt.拥有 → possessionn.财产 二、一词多义 1.merchant n.商人;批发商 adj.海上货运的 ①The merchants of Arab are doing their things all of the world.(...
Adam and Eve, and all of us following, took of the tree of the knowledge of good and evil (Genesis 2:9; 3:6)—a mixture of good and bad. Have we not all seen wonderful examples of self-sacrifice, compassion, tenderness and love for fellow humans, even by people who at other ...
A matter is anything that has mass and occupies space. It can be classified as either a mixture or a pure substance depending on how the components of matter can be separated or broken down. Classifying matter is important since the physical and chemical properties of matter can be more ...
【难句理解】What the plants pump through the air is a mixture of chemicals known as volatile organic compounds, VOCs for short.结构分析,这是一个主从复合句。 What the plarts pump through the aitr 是Whar引导的主语从句;known as.是过去分词短语作后置定语。__汉语大意;植物释放到空气里的是一种被...