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Doss [256]
3 years ago
7

The atoms of some elements can be made

Chemistry
1 answer:
natima [27]3 years ago
8 0

Answer:

I think 4 I got it right on edg but i duno if its the same

Explanation:

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In the teapot dome scandal, what did the secretary of the interior albert fall lease
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Albert Fall secretly leased federal oil reserves for personal gain.
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When ethyl acetoacetate (CH3COCH2CO2CH2CH3) is treated with one equivalent of CH3MgBr, a gas is evolved from the reaction mixtur
grigory [225]

Answer:Methane gas is evolved from the reaction mixture.

Explanation:

When ethyl acetoacetate is treated with grignard reagent a carbanion is generated.

There are two acidic hydrogens which are present on the carbon which is in between the ester and the ketone group in ethylacetoacetate.

These two protons are also called active methylene protons and they are very acidic in nature due to the presence of two electron withdrawing substituents that is an ester and ketone.

CH₃MgBr is grignard reagent and it is an organo-metallic copmpound  . Carbon here in CH₃MgBr exists as carbanion  CH3⁻ which is basic enough to abstract the acidic protons present on ethylacetoacetate.

As CH3⁻ abstracts an acidic  proton from ethylacetoacetate it become CH₄ which is methane. As methane is a gas so it is methane gas which is evolved from the reaction mixture.

As  the acidic proton is abstracted from ethylacetoacetate which leads to generation of carbanion and this carbanion is very stable as it can be delocalized on to the two carbonyl groups . As we add aqueous acid to the reaction mixture the carbanion can again be protonated and its protonation would lead to the generation of ethylacetoacetate again.

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4 years ago
The number 875000 written in scientific notation would be
babymother [125]

Answer:

8.75 x 10^5

Explanation:

hope this helps

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There are two main items that cause the seasons what are they. There more than one answer
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What causes the seasons?
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The Karez well system _______. a. was the first known use of wells b. was a postindustrial system c. transported groundwater fro
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The Karez Well System is an important ancient irrigation system. It is made up of a horizontal series of vertical dug wells that are linked to each other by underground water canals. This system provides water to drink for local people as well as to water their crops. The water was collected from the mountains which are miles away from the farmland. Thus, this system transfers water from mountains in form of groundwater to people which are miles away.

Hence, the Karez well system transported groundwater from a distance.


6 0
4 years ago
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