The steam is a kind of gas. The air that you breathe is a mixture of gases. We can't usually Gases see the gas but sometimes we can feel it when it moves. For example, on a windy day, we can feel the air is moving.Things can change from one state to another when we make ...
解析 10. Air is a mixture of gases. (gas) 结果一 题目 Air is a mixture of invisible gas. 答案 gas改成gases本题考查名词单复数,gas做气体时可数名,多种气体的混合,所以用复数。相关推荐 1Air is a mixture of invisible gas. 反馈 收藏 ...
A mixture of 25% CO and 70% N(2) is called producer gas. The rest is 4% CO(2) with traces of CH(4), H(2), and O(2).
The Travel Agency, with which our company has been dealing for several years, has opened for new branches.那家与我们交易了好几年的旅行社又开了新的分店。 ☛Air is a mixture of gases, of which oxygen forms 21 percent.空气是一种气体的综合体,其中氧气占了21%。 7. 从句中的谓语动词是否定...
Producer gas is a mixture of ACO and N2 BCO2 and H2 CCO and H2 DCO2 and N2Submit Water gas is a mixture of AAir & water BCO+H2 CCO+H2 DCO2+H2Submit Water gas is a mixture of AAir & water BCO+H2 CCO+H2 DCO2+H2Submit ...
Air is a mixture of gases that you breathe.You cannot see,smell or taste air but it is around you.Layers of air surround theearth,too,making up the earth''s atmosphere.Oxygen is a gas found in the air ,All animals including humans ,need it to stayaliveNitrogen and oxygen are the two...
百度试题 结果1 题目写出语境中加黑单词的词性和含义Air is a mixture of①gases. ②Gas is also the fuel which is used to drive motor vehicles.① ② 相关知识点: 试题来源: 解析 ①n.气体 ②n.汽油 反馈 收藏
Producer gas is a mixture of ACO and N2 BCO2 and H2 CCO and H2 DCO2 and N2Submit Water gas is a mixture of AAir & water BCO+H2 CCO+H2 DCO2+H2Submit Water gas is a mixture of AAir & water BCO+H2 CCO+H2 DCO2+H2Submit ...
A sterilant gas mixture for cold gas sterilisation is provided which is composed of alkene oxide and 1,1,1,2,3,3,3-heptafluoropropane. The sterilant gas mixture contains 12 to 22 mol % ethylene oxide or propylene oxide and 78 to 88 mol % of 1,1,1,2,3,3,3-heptafluoropropane.DEGER...
To determine whether air is a compound or a mixture, we can follow these steps: Step 1: Understand the Definitions- Compound: A substance formed when two or more elements are chemically bonded together. The properties of a compound are different from those of its individual elements, and it ...