Today,our currency(货币) is a mixture of metal coins and paper money,but it wasn't always that way.Before metal coins and paper bills existed(存在),people used a lot of unusual things to buy what they needed.In one part of the world,for example,people used the sharks' teeth for money...
n.1 hard metal that is a mixture of copper and tin 青铜,古铜 2 a red-brown color 古铜色,青铜色 appliance [plans] n. a piece of equipment.esp.electrical equipment. used in people's homes 家用电器,家用器具 clay [kle] n. a type of heavy sticky earth that can be used for making pot...
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:...
8 The metal used to make a coin is a mixture of steel and copper.The ratio mass of steel : mass of copper is 108: 7.The coin has a total mass of 230 milligrams.Calculate the mass of copper in this coin.Answer milligrams [2] ...
preparing a metal matrix composite power mixture 青云英语翻译 请在下面的文本框内输入文字,然后点击开始翻译按钮进行翻译,如果您看不到结果,请重新翻译! 翻译结果1翻译结果2翻译结果3翻译结果4翻译结果5 翻译结果1复制译文编辑译文朗读译文返回顶部 制备金属基复合电源混合...
What is a mixture of copper and tin called?AlloysWhen a metal is mixed with another element, it forms an alloy. Alloys are generally stronger and resist corrosion better than the metal alone. The alloy can be made of a metal and a nonmetal or two metals. For example, steel is an ...
eating clay. Dr Gilardi fed one group of macaws a mixture of harmless alkaloid and clay, and a second group just the alkaloid. Several hours later, the macaws that had eaten the clay had 60% less alkaloid in their bloodstreams than those that had not, suggesting that the hypothesis is ...
“TechShop is a do-it-yourself maker space. So when you come in we have all these different areas of the shop, and we have a metal shop, wood shop, lasers, 3D printers, electronics. I mean, we have so many different areas and we have all the equipment that is availahle to anybody...
d-block elements that are metal with typical metallic properties are called [{Blank}].Is steel classified as an element, a compound, a homogeneous mixture, or a heterogeneous mixture? Explain.Classify aluminum foil as one of the following. a. ele...
addingmemberstoassemb addis addition of a new par addition mixture addition n addition of hormones addition of pigments addition of variables addition of vitamins addition to alimony a addition additional account as additional agent fini additional allocation additional articles o additional declaratio addit...