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shepuryov [24]
3 years ago
11

What is the first element of the periodic table?

Chemistry
2 answers:
Nikolay [14]3 years ago
7 0
The first element of the periodic table is Hydrogen. It is the only element that can achieve being stable without a full octet (8 valence electrons). 

Answer: Hydrogen 
Tpy6a [65]3 years ago
3 0
Hyrdrogen.
I hope this helps;)
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Explanation:

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6 0
3 years ago
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Lostsunrise [7]

Answer:

See explanation

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The reaction that we are considering here is quite a knotty reaction. It is difficult to decide if the mechanism is actually E1 or E2 since both are equally probable based on the mass of scientific evidence regarding this reaction. However, we can easily assume that the methylenecyclohexane was formed by an E1 mechanism.

Looking at the products, one could convincingly assert that the reaction leading to the formation of the two main products proceeds via an E1 mechanism with the formation of a carbocation intermediate as has been shown in mechanism attached to this answer. Possible rearrangement of the carbocation yields the 3-methylcyclohexene product.

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3 years ago
A solution has a pH of 12. Is it considered an
Mila [183]

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5 0
2 years ago
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Goshia [24]

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shusha [124]

Answer:

True

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