百度试题 结果1 题目Which of the following is a compound? A. Oxygen B. Hydrogen C. Water D. Nitrogen 相关知识点: 试题来源: 解析 C。水(Water)是化合物。氧气(Oxygen)、氢气(Hydrogen)和氮气(Nitrogen)都是单质。
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Which of the following is an ionic compound? a. H2O b. HCl c. N2 d. NH3 e. CaCl2 Which compound of nitrogen gas causes pollution? Identify the cation and anion in the compound formed between aluminum and nitrogen. Write the name and formula of this compound. Name the following compound...
Nitrogen-containing heterocyclic compound acyl group is substituted at the ortho-position of the nitrogen and what is provided is used as an oligomerization catalyst for olefins, the production method of (II) complex, the complex and can be obtained by the above process the aminal iron It is ...
Nitrogen is a gas. Byanon161881— On Mar 21, 2011 So is nitrogen a solid, liquid, or gas? That's all i want to know. Byanon48387— On Oct 12, 2009 Anon46939: Nitrogen is not compoosed of raw materials. It is an element. Therefore, it *is* the raw material. ...
Write the formula for the compound magnesium perchlorate. Heating a 2.00 g sample of magnesium metal with an excess of pure nitrogen gas produce 2.77 g of a compound containing only magnesium and nitrogen. What is the empirical formula for this compound?
The reaction components were taken in a round-bottom three-neck flask having a condenser and an inlet and outlet for nitrogen gas. The reaction was carried out in an inert atmosphere in a boiling oil bath for ~ 2 h. On completion of the reaction, the reaction mixture was brought to room...
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An anthracene derivative represented by a general formula (1) and an organic compound represented by a general formula (8) are provided. Further, by use of the anthracene derivative represented by the general formula (1), a light-emitting element with high emission efficiency can be obtained. ...