A compound is 54.53% C,9.15% H,and 36.32% O by mass.What is its empirical
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A compound is 54.53% C,9.15% H,and 36.32% O by mass.What is its empirical
A compound is 54.53% C,9.15% H,and 36.32% O by mass.What is its empirical
A compound is 54.53% C,9.15% H,and 36.32% O by mass.What is its empirical
一个化合物的质量构成是54.53%的C,9.15%的H,36.32%的O.它的“经验”(这个...是不是说化学式啊我也拿不准)是什么?
A compound is 54.53% C,9.15% H,and 36.32% O by mass.What is its empirical
Homesick is a compound work madeup ofHOME and SICK
compound
compound
Homesick is a compound work made up of HOME and SICK
Homesick is a compound work made up of HOME and SICK 翻译 人工的
辨析:it is always possible to infer the meaning of a compound from its component parts.
the empirical forumla of a compound is no2,its molecular mass is 92g/mol.what is its molecular formula?
Janet is a good singer.Janet is only a normal dancer.(compound sentence)请帮忙改为复合句,
a gaseous mixture that is a homogeneous mixture of a compound and an elementshow example 化合物&元素
A compound contains only carbon,hydrogen,and oxygen.Combustion of 10.68 mg of the compound yields 16.01 mg CO2 and 4.37 mg H2O.The molar mass of the compound is 176.1 g/mol.What are the empirical and molecular formulas of the compound?(Type your answ
英文化学题,求解A sample of an unknown biochemical compound is found to have a percent composition of 40.45 percent carbon, 7.92 percent hydrogen, 15.73 percent nitrogen and the balance oxygen. What is the simplest formula for this compound
英语翻译The wastewater is characterized by a strong dark color,high chemical oxygen demand (COD) concentration,presence of refractory volatile organic compound and low biodegradability.presence of refractory volatile organic compound 应该翻译
英语翻译The compound rest is mounted on the cross slide and can be swiveled and clamped at any angle in a horizontal plane.The compound is typically used for cutting chamfers or tapers,but also must be used when cutting threads.The compound rest
the empirical forumla of a compound is no2,its molecular mass is 92g/mol.what is its molecular formula?help me do this!
英语化学求分子式和试验试!A compound contains only carbon,hydrogen,and oxygen.Combustion of 10.68 mg of the compound yields 16.01 mg CO2 and 4.37 mg H2O.The molar mass of the compound is 176.1 g/mol.What are the empirical and molecular for
what is the chemical formula of the compound如题
Physics problems.A compound machine used to raise heavy boxes consists of a ramp and a pulley.The efficiency of pulling a 100-kg box up the ramp is 50%.If the efficiency of the pulley is 90%,what is the overall efficiency of the compound machine?