How to read CH2Cl-CH2-CH2-CH2-CH2-CH3? And this CH3-CHCl-CH2-CH2-CH2-CH3

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• 1. -(CH2)16 CH3!
• 2. CH2=CH-C≡C-CH3 has several atoms coplanar, why? Tomorrow's the exam. Come on, CH2=CH-C≡C-CH3 How many atoms are coplanar? Tomorrow's the exam. Come on,
• 3. Propylene, why must be written as CH2=CH-CH3, can not be written as CH3-CH=CH2
• 4. A. The R group of methionine is —CH 2—CH 2,—S—CH 3, and its molecular formula is that C5H11O2NSB. tyrosine is almost insoluble in water, while arginine is soluble A. The R group of methionine is —CH2—CH2,—S—CH3, then its molecular formula is C5H11O2NS B. Tyrosine is almost insoluble in water, whereas arginine is soluble in water, a difference caused by differences in R groups C. n amino acids have a total of m amino groups, then the number of amino groups in a polypeptide condensed from these amino acids must be m-n D. If the molecular formula of sweet peptide is C13H16O5N2,, the sweet peptide must be a dipeptide. Why sweet peptide two N must be dipeptide? Can not be a peptide?
• 5. How to prepare magnesium hydroxide with strong and weak bases? Find the chemical equation.
• 6. Substances whose molecular composition differs by one or more CH2 groups must be homologues Can you give a counterexample? Substances whose molecular composition differs by one or more CH2 groups must be homologues Can you cite a counterexample? Substances whose molecular composition differs by one or more CH2 groups must be homologues Can you give us a counterexample?
• 7. Judgement: Organic matter with one or more CH 2 groups are homologues. Judgement: Organic compounds with one or more CH 2 groups are homologues.
• 8. In homologues, the matter which conforms to the same general formula and whose molecular composition differs by several CH2 groups is not necessarily homologues.
• 9. Is it correct to say that two organics that differ in molecular composition by one'CH2' atom must be homologues?
• 10. In maximum number of carbon atoms in the same plane is Why is 5 instead of 8, the next 5 is which five. In maximum number of carbon atoms in the same plane is Why is 5 instead of 8, the next five is which five. The maximum number of carbon atoms in the same plane is Why is 5 instead of 8, the next 5 is which five.
• 11. - How to read the group CH2-CN?
• 12. The composition of a hydrocarbon is C15H24, and its molecular structure is very symmetrical. It is proved that there are only three groups in the hydrocarbon: vinyl (-CH=CH2) methylene (-CH2 The composition of a hydrocarbon is C15H24, and the molecular structure is very symmetrical. The experiment proves that there are only three groups in the hydrocarbon: Vinyl (-CH=CH2) methylene (-CH2-) methylene () And the vinyl and the methylene must be linked by methylene. When the hydrocarbon is a monocyclic structure, the vinyl in the molecule And the number of methylene groups is A.2,3 B.3,3 C.4,6 D.3,6
• 13. Ammonium salts decompose when heated, but not all produce ammonia Give me an example of why. Xie
• 14. The ammonium salt produced by a reaction in a chemical equation is written in the case of ammonia and in the case of ammonium salt (a reaction in solution). For example, AlCl3+3NH3·H2O ===? The ammonium salt produced by a reaction in a chemical equation is written in the case of ammonia and in the case of ammonium salt (a reaction in solution). Such as AlCl3+3NH3·H2O===?
• 15. The chemical equation of ammonia production from ammonium salt and alkali is used in laboratory.
• 16. Inspection of ammonium salt Ammonium salt can be tested by adding sodium hydroxide solution for co-heating. Does the solution have to be added? Is it possible to add sodium hydroxide to the solid for co-heating? Is it possible to add other bases? Or must it be strong alkali? Inspection of ammonium salt Ammonium salt can be tested by adding sodium hydroxide solution for co-heating. Does the solution have to be added? Is it okay to add sodium hydroxide to the solid for co-heating? Is it possible to add other bases? Or must it be strong alkali?
• 17. Is it possible for CH3CH=CHCl (CH3)2C=CHCH3CH2=CCl to form cis-transisomer? Can CH3CH=CHCl (CH3)2C=CHCH3CH2=CCl form cis-transisomer?
• 18. 6. The cis-trans isomer of the following compounds: A. CH3CH = CHCH3 B.CH3CH2CH2CH = CH2 C.CH3CH = C (CH3)2 D. CH3C≡ CCH3 6. The cis-trans isomer of A. CH3CH = CHCH3 B.CH3CH2CH2CH = CH2 C.CH3CH = C (CH3)2 D. CH3C≡ CCH3
• 19. Ask why CH2=C (CH3)2 and CH3CH=CHCH3 are carbon chain isomers...
• 20. CH2=C (CH3)2CH3CHH=CH=CH3 Why is CH2=C (CH3)2 and CH3CH=CHCH3 Functional Isomerism rather than Carbon Isomerism Give an example of the carbon chain isomerization of olefins! Is CH2=C (CH3)2CH3CHH=CH=CH3 Why is CH2=C (CH3)2 and CH3CH=CHCH3 Functional Isomerism rather than Carbon Isomerism Give an example of carbon chain isomerization of olefins!