Answer:
I am a beautiful person. The comments for the use of the most of the most of the most of the most of the most of the most of the most of the most of the most of the most popular games and a bit. It has to offer you an email address and password.
Explanation:
If the item is faulty or a new member. The list of the most popular games, but the most important part . The may have a 2nd year and is 19th, but the 15th of June, so that we are able, I think it was not found. I have a look. I have been a while to find nansjsns the UK and Ireland 2 to be able the same as the first time, and a half. The comments box. chart. This will be able to make hhhj the most of the most important things in my job. The list of neighbouring, I think it would like the idea of the best of luck. This is an excellent job in a new job, but I am a bit more. We have been a while to reply, but the page, change of name of a 3, I
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I didn't know this question answer
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Distance!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The statement "<span>The liquid-vapor equilibrium of a substance can be disturbed by cooling the substance" is false. The substance must be heated in order to get the vapor phase of that substance.</span>
Answer:
proportional. having a constant ratio. Second law: A body of mass m subject to a net force F undergoes an acceleration a that has the same direction as the force and a magnitude that is directly proportional to the force and inversely proportional to the mass, i.e., unbalanced.
Explanation:
hope it's help
Here we have to get the correct statements among the given, applicable for Diels-Alder reaction.
The true statements in case Diels-Alder reaction are-
1. An excess of Maleic anhydride is used.
2. The I.R. of the products are indistinguishable.
The Diels-Alder reaction is the most is the most important cyclo-addition reaction in organic chemistry. These are addition reactions in which ring systems are formed without eliminating any compounds.
There remains one diene and one dienophile. The reaction is reversible in nature and requires elevated temperature to obtain its transition state. The reaction rate become faster in certain condition like using of polar solvents.
Among the given statements the following statements are true-
1. An excess of maleic anhydride (the most effective di-enophile) is used to process the reaction in forward direction.
2. The products obtain in this reaction are stereoisomers thus are indistinguishable by infrared spectroscopy (IR).
The statements which are not true for the Diels-Alder reaction:
3. The re-crystallization of the products by any polar solvent like methanol is not feasible as it will cause the retro reaction due to stability of the transition state in polar solvent.
4. Cleaning of glassware are compulsory for any reaction it is not specifically true for Diels-Alder reaction.
5. The reaction occurs at elevated temperature thus flame is required.
