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MA_775_DIABLO [31]
3 years ago
12

An atom of which element has the greatest attraction for electrons in a chemical bond?

Chemistry
2 answers:
Katyanochek1 [597]3 years ago
5 0
Answer is (4) - Se.

Among the given choices Se has the highest electronegativity value as 2.4 compared to others. Hence, Se shows <span>greatest attraction for electrons in a chemical bond.

</span>Electronegativity is a value that tells us how an atom can attract electrons towards itself. <span>If the electronegativity is high, then the attraction to the electrons is also high. 
</span>
Nady [450]3 years ago
5 0
An Atoms of Se has the greatest attraction for electrons in a chemical bond. It has a small atom though.
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When N,N-Dimethylaniline is treated with bromine, ortho and para products are observed. However, when N,N-Dimethylaniline is tre
lilavasa [31]

Answer:

See explanation below

Explanation:

To get a better understanding watch the picture attached.

In the case of the reaction with Bromine, the -N(CH₃)₂ is a strong ring activator, therefore, it promotes a electrophilic aromatic sustitution, so, in the mechanism of reaction, the lone pair of the Nitrogen, will move to the ring by resonance and activate the ortho and para positions. That's why the bromine wil go to the ortho and para positions, mostly the para position, because the -N(CH₃)₂ cause a steric hindrance in the ortho position.

In the case of the reaction with HNO₃/H₂SO₄, the acid transform the -N(CH₃)₂ in a protonated form, the anilinium ion, which is a deactivating of the ring, and also a strong electron withdrawing, so, the electrophile will go to the meta position instead.

Hope this helps.

6 0
2 years ago
The orbital radius of Venus is 0.72 AU. What is this distance in kilometers? (One AU is about 150 million kilometers.)
Evgen [1.6K]
<span>The answer is D) 108 million kilometers. To solve this problem, you must perform a simple unit conversion calculation. 1 AU = 150,000,000 km is the conversion factor. Take the radius of Venus, .72 AU, and multiply it by 150,000,000 km/1 AU. You flip the conversion factor so that the units of the original distance in the numerator cancel the units in the denominator of the conversion factor. completing the calculation gives you 108,000,000 km</span>
6 0
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The observation that 20g of hydrogen gas always combines with 160g of oxygen gas to form 180g of water, even when there is more
mash [69]

Answer:

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3 0
2 years ago
Please answer each:) &lt;3
Nutka1998 [239]
⭐Hola User____________

⭐Here is Your Answer...!!!

⭐____________________

SOLUTIONS

↪1) Aqueous Solution

↪2) Solvent

↪3) Solute
_______________________

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4 0
2 years ago
When ammonium chloride is dissolved in water, the beaker gets cold. Which type of reaction does this describe
gulaghasi [49]

Answer:

B

Explanation:

i think with exothermic reactions heat is released

this is what i looked up

hope this helps i took chem last year and think this is what i learned

7 0
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