()49. What is gunpowder (火 ) made of? A. Parsley (欧芹), sage (鼠尾草), rosemary (迷迭香), and thyme(百里香). B. Hydrogen and oxygen. C. Charcoal, sulfur (硫磺), and potassium nitrate (硝酸钾). D. Silver, gold, and bronze. 相关知识点: 试题来源: 解析 C优质解答 反馈 ...
What is modern gunpowder made of? Gunpowder, also commonly known as black powder to distinguish it from modern smokeless powder, is the earliest known chemical explosive. It consists ofa mixture of sulfur, carbon (in the form of charcoal) and potassium nitrate (saltpeter). The sulfur and carbon...
The four great inventions are invitations from ancient China.They areCompass ,gunpowder paper making and printing .They are historically significant and considered symbols of ancient China’s advanced science and technology. What is paper making? paper is a “wood”like material primarily used for wr...
Unit 5 What are the shirts made of? Section A. What is is called? wood. Compass 指南针 printing 印刷术 gunpowder 火药 paper-making 造纸术. Unit 6 Unit 6. bananas apples strawberries orangespears fruits.
What is Gunpowder Tea 3503 Selling Well in Africa, and Asia Market, 3503 Gunpowder Tea manufacturers & suppliers on Video Channel of Made-in-China.com.
An aerial shell is made of gunpowder, which is a well-known explosive, and small globs of explosive materials called stars (Fig. 1). The stars give fireworks their color when they explode. When we watch fireworks, we actually see the explo- sion of the stars. They are formed into ...
It was then called flaming medicine.4.Gunpowder is a well-known invention to many people around the world, because the Chinese used thegunpowder for fireworks.Seismograph (地震仪) is also considered to be an important invention of the ancient Chinese people. 5.With the help of his invention,...
a培根说:火药之于战争在古代发明中对人类的影响最大。 Bacon said that,The gunpowder invented in the war in the ancient times the influence is biggest to the humanity.[translate] aAMD Chipset Driver (include chipsetsata raid driver 正在翻译,请等待... ...
a跳更高 别靠腰 要靠心脏的火药 Jumps high do not depend on the waist to have to depend on the heart the gunpowder[translate] a如果有任何需要帮助的地方,请随时与我联系 あらゆる持っていたら必要私と関連しなさいように助けの場所を、必要としなさい[translate] ...
a mixture of coloured dyes. gunpowder : a mixture of sulfur, potassium nitrate and carbon. types of mixtures there are two main types of mixtures: homogeneous mixtures and heterogeneous mixtures . the types of mixtures are discussed below. 1. what is a heterogeneous mixture? a mixture of sand...