What is the weight of oxygen that is required for the complete combustion of 2.8 kg of ethylene :
View Solution The density of oxygen is1.43gL−1at STP. Determine the density of oxygen at17∘Cand 800 torr. View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class 12, IIT...
百度试题 结果1 题目() 5. What is the chemical for oxygen? A. symbol B. stage C. step 相关知识点: 试题来源: 解析 A 反馈 收藏
A 0.100g sample of carbon-hydrogen-oxygen compound is combusted in a stream of pure oxygen and produces 0.220g CO2 and 0.239g H2O. What is the mass of hydrogen in the sample? If 36 grams of water is split into hydrogen and oxyg...
Is oxygen the only gas ___ helps fire burn⏺A. whichB. whatC. thatD. it 相关知识点: 试题来源: 解析C本题考查定语从句关系代词的选择。句子结构为疑问句"Is oxygen the only gas ___ helps fire burn",其中先行词是gas,被"only"修饰。具体解析如下:A. which...
Air contains 20.95% oxygen. What is the concentration of oxygen in the atmosphere (0 degrees Celsius and 1 atm) using units of g/L? Mole Fraction: One of the useful concentration units that we can use to express solutes' concentration is t...
JNAN PUBLICATION-BHEAVIOUR OF GASES-EXAMPLE Write the mathematical expression for ideal or perfect gas. 03:43 Which equation is calle the characteristic equation or equation of sta... 03:07 What is value of molecular weight of oxygen? 03:20 What is the value of molecular weight of hydrogen...
Is oxygen the only gas ___ helps fire burn?A that B / C which D what 相关知识点: 试题来源: 解析 A核心短语/词汇:help sb./ sth. (to) do sth. 帮助某人/某物做某事句子译文:氧气是唯一的助燃气体吗? 本题考查定语从句。___helps fire burn 用来修饰之前的名词gas, 该从句的引导词在定...
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
句子主结构为"Is oxygen the only gas ___ helps fire burn?",空处需填入关系代词引导定语从句修饰先行词"gas"。分析选项:A.that(可指代物,作主语);B.what(不引导定语从句);C.who(指代人);D.whether(引导名词性从句,表"是否")。 逐项排除: 1. "gas"为无生命物,排除C选项who; 2. 本句为定语从句...