In chemistry, you might see the abbreviation “H₂O”. What does it represent? hydrogen oxide hydrogen dioxide dihydrogen monoxide dihydrogen dioxide相关知识点: 试题来源: 解析 答案:dihydrogen monoxide。“H₂O”是水的化学式,表示两个氢原子和一个氧原子组成的化合物,中文为一氧化二氢,也称为水。
When do you put brackets in chemical formulas? How are parentheses used in chemical formulas? A chemical formula is an expression used to represent what? What does aq mean in chemistry? What does a subscript indicate in a chemical formula?
In addition to kg/m, another unit is also used to represent mass per unit length. This is known as the tex, which is the number ofgrams(1 gram = 10-3kg) per 1,000 meters. Another unit is the denier, which is the number of grams per 9,000 meters of thread. In real-world appli...
20. to cause to seem or represent as being: that furniture makes the room look dark. 21. to earn, acquire, or win for oneself: to make friends; make a fortune. 22. to engage in: make love not war. 23. to traverse or cover (distance) by travelling: we can make a hundred ...
Existing instructional materials for chemistry offer a huge range of different external representations that can be used by chemistry teachers to support students’ understanding of chemical concepts like the concept structure of matter . In science, dif
Well, my country has the world's largest population .Additionally, you won't be able to find another nation like China with its vast diversity in culture, language, customs . The simple and amiable people who represent the country are quite helpful to others. Our country has a vast diversit...
The readability and coherence of a written paper represent that one honed his or her writing skills. Every instructor highly appreciates these abilities. Read Also: Chemistry Research Topics That Will Knock You Off Your Feet Main Types of Research Papers What is the key to getting the highest ...
What is potency, as used in chemistry studies using key chemistry words? For the element Ca, what will the signal be in 1 ppm standard at 3000 K? Why are chemists concerned with the rates of chemical reactions? What possible practical value does this type of information have?
So do you think the car needs the energy in order to move? John: Yes. The gasoline is their form of energy. Interviewer: Ok. So when gasoline is used up or becomes exhaust, where does the energy go? John: The energy goes with it into the air, back into the air. Interviewer: ...
And if you do not rinse your sample out, when you change your processor at the end of however many runs your lab does, when you’re dumping the ethanol, you’re going to see that there’s a lot of salt going down the drain. Our processor starts in 70% ethanol. We don’t even ...