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WITCHER [35]
3 years ago
15

As a species evolve, they develop ________ and ________ others

Chemistry
2 answers:
Lerok [7]3 years ago
5 0
New traits old traits to lose and save
olga_2 [115]3 years ago
3 0

Answer:

d

Explanation:

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Draw all four products obtained when 2-ethyl-3-methyl-1,3-cyclohexadiene is treated with HBr at room temperature and show the me
LenKa [72]

Answer:

See explanation below

Explanation:

In this case we have reaction of addition. In this case a diene reacting with an acid as HBr. This reaction is known as Hydrohalogenation, and, as we have a diene, this kind of reaction can be done as 1,4 addition. Which means that the reaction will be undergoing with an adition in the carbon 1, and carbon 4.

At room temperature we can expect that this reaction can be done in thermodynamic conditions, Now, as the problem states that is forming 4 products, we can expect products of a 1,2 addition too. This product can be formed if the reaction is taking place in the most stable carbocation, and then, by resonance, we can expect the 1,4 product too.

Now, the HBr can be attacked by the double bond of the first position, giving two possible products or by the double bond of the third position giving the other two products. These products are all possible, obviously the most stable will be the major of all of them, but the other three are perfectly possible. One product is formed without doing much, and the other by resonance. Same happens with the other double bond.

In the picture below, you have the mechanism for all the 4 products.

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3 years ago
What are 2 comparisons between organisms and music?
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Explanation:

Can I please have this for some reason all my answers got deleted (I had 28)

Now are gone so you don't have to give thanks just let me get out of the negative. (pls!!)

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It’s should be option 4
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