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nekit [7.7K]
2 years ago
9

Why is it useful to group elements based on the way they behave in chemical reactions?

Chemistry
1 answer:
Basile [38]2 years ago
8 0

<em>The elements in a group often look and behave similarly, because they have the same number of electrons in their outermost shell — the face they show to the world. Group 18 elements, on the far right side of the table, for example, have completely full outer shells and rarely participate in chemical reactions.</em>

<em />

<h2><em>Have a nice day </em></h2>
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Propose a mechanism for the following reaction.
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First, recognize that this is an elimination reaction in which hydroxide must leave and a double bond must form in its place. It is likely an E2 reaction. Here is an efficient mechanism:
1) Pre-reaction: Protonate the -OH to make it a good leaving group, water. H2SO4 or any strong H+ donor works. The water is positively charged but still connected to the compound.
2) E2: Use a sterically hindered base, such as tert-butoxide (tButO-) to abstract the hydrogen from the secondary carbon. [You want a sterically hindered base because a strong, non-sterically hindered base could also abstract a hydrogen from one of the two methyl groups on the tertiary carbon, and that leads to unwanted products, which is not efficient]. As the proton of hydrogen is abstracted, water leaves at the same time, creating an intermediate tertiary carbocation, and the 2 electrons in the C-H bond immediately are used to make a double bond towards the partial positive charge.
In the products we see the major product and water, as expected. Even though you have an intermediate, remember that an E2 mechanism technically happens in one step after -OH protonation. 
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3 years ago
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arsen [322]
Hey there!

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~Autumly
3 0
3 years ago
What is formed when water chemically combines with carbon dioxide
solong [7]

When water chemically combines with carbon dioxide, a Carbonic acid is formed.

<u>Explanation</u>:

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Answer:

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Explanation:

I learned this in 7th grade!!!!

Mark Me Brainliest plzz

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Ill give brainlest to the one who answers right.
liraira [26]
The answer would be h2o
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2 years ago
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