Hydrogen also serves to prevent metals from tarnishing(生锈) during heat treatments by removing the oxygen from them.Although it would be difficult to remove the oxygen by itself,hydrogen readily combines with oxygen to form water,which can be heated to steam and easily removed. ...
Hydrogen is the most abundant element in the universe. It is rarely found in its pure form on Earth but instead combines with other elements. It makes up both organic and inorganic matter, is extremely flammable, and is used to make items such as ammonia and rocket fuel.What...
Compared(与…相比较) with diesel trains, the Coradia iLint is designed to run on non-electrified train lines with low levels of noise. It uses a process that combines hydrogen and oxygen to produce electrical power. If the system produces more energy than the train needs at that time, it ...
Fuel cells to generate electricity operate on hydrogen and oxygen. Hydrogen also serves to prevent metals from tarnishing during heat treatments by removing the oxygen from them. Although it would be difficult to remove the oxygen by itself, hydrogen readily combines with oxygen to form water, ...
4.Hydrogencombines chemically with oxygen to form water. 和氧化合成为水。 5.Water can be reduced to oxygen andhydrogenby electrolysis. 用电解法 把水分解为氧和 。 6.Water is made up of atoms ofhydrogenand oxygen. 水由和氧的原子构成。
It is the lightest of all gases, and combines with other elements, sometimes explosively, to form compounds. Great quantities of hydrogen are required commercially for the fixation of nitrogen from the air in the Haber ammonia process and for the hydrogenation of fats and oils. It is also ...
Atmospheric nitrogen gas combines with hydrogen gas in the following reaction: N_2 + 3H_2 \to 2NH_3. How many grams of NH_3 will be produced when 5.00 moles of When 60L of ammonia gas and 60L of oxygen gas react at STP, how many grams of nitrog...
The meaning of HYDROGEN is a nonmetallic gaseous chemical element with atomic number 1 that is the simplest and lightest of the elements and that is used especially in the processing of fossil fuels and the synthesis of ammonia —often used before anothe