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Zanzabum
3 years ago
15

Elements that have high electronegativities occur in which group on the periodic table?

Chemistry
2 answers:
Mariana [72]3 years ago
7 0
Answer is: <span>c.VIIA.

</span>In VIIA or group 17 (hologen elements) there are six elements: fluorine<span> (F), </span>chlorine<span> (Cl), </span>bromine<span> (Br), </span>iodine<span> (I), </span>astatine<span> (At).and </span>tennessin(<span>Ts).
</span><span>They have high electronegativity because they have seven valence electrons in their outermost energy level, so they can gain an electron to have the </span>octet rule<span>. </span>
Electronegativity<span> is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.
</span>
AnnZ [28]3 years ago
5 0

Answer:

Answer is: c.VIIA.

Explanation:

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Please help, please don’t answer links
lakkis [162]

Answer:

0.093 mole of C₆H₁₂.

Explanation:

We'll begin by calculating the molar mass of C₆H₁₂. This can be obtained as follow:

Molar mass of C₆H₁₂ = (12×6) + (12×1)

= 72 + 12

= 84 g/mol

Finally, we shall determine the number of mole in 7.8 g of C₆H₁₂. This can be obtained as follow:

Molar mass of C₆H₁₂ = 84 g/mol

Mass of C₆H₁₂ = 7.8 g

Mole of C₆H₁₂ =?

Mole = mass / molar mass

Mole of C₆H₁₂ = 7.8 / 84

Mole of C₆H₁₂ = 0.093 mole

Thus, 7.8 g contains 0.093 mole of C₆H₁₂.

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