百度试题 结果1 题目(10)-What is the percentage of nitrogen () in the air?-About 78percent . (percent) 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
百度试题 结果1 题目(10)-What is the percentage of nitrogen(氮) in the air?-About 78 percent . (percent) 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
Step-by-Step Solution:1. Determine the Percentage of Oxygen in Air: - The composition of air is made up of various gases. The most significant component is nitrogen, which makes up about 78% of the atmospher
Nitrogen is the most abundant gas in the atmosphere. Air is composed of 78 percent nitrogen. Oxygen accounts for 21 percent, and the inert noble gas argon makes up 0.9 percent of the air. The remaining 0.1 percent consists of several trace gases. Most of the 0.1 percent is carbon dioxide....
A setting unit (16a) determines the difference in pressure at the sides of the membrane. The membrane has a higher permeability for oxygen than for nitrogen, and preferably only allows oxygen to pass through it, with a lower pressure on the motor intake side than at the air flow side....
The atmosphere is mainly composed of nitrogen and oxygen. What percentage of the atmosphere is nitrogen? A. 21% B. 78% C. 99% D. 50% 相关知识点: 试题来源: 解析 B。解析:大气层主要由氮气和氧气组成,其中氮气约占 78%,氧气约占 21%。
The percentage of oxygen in NaOH is A16% B4% C40% D8%Submit The percentage of oxygen in dry air, in terms of voulme, will be. View Solution The percentage of oxygen in NaOH is View Solution The percentage of nitrogen present in ammonium sulphate is : View Solution The percentage ...
结果1 题目What percentage of the Earth's atmosphere does nitrogen make up by volume? A. 21% B. 50% C. 78% D. 99% 相关知识点: 试题来源: 解析 C。原因:It makes up about 78% of the Earth's atmosphere by volume.。反馈 收藏 ...
What are the percentage of water and nitrogen does our body have?Question:What are the percentage of water and nitrogen does our body have?WaterWater is demarcated as a substance that is encompassed of the chemical fundamentals such as hydrogen as well as oxygen and prevailing in solid,...
Irrigation Scheduling Weather forecasts Nitrogen use efficiency Water use efficiency Humid Nitrogen uptake 1. Introduction Irrigation and nitrogen (N) play a significant role in crop growth, development, and productivity. Irrigated agriculture accounts for 70% of global water use (FAO, 2017). In the...