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kirill [66]
2 years ago
14

Explain how the atoms are held together by tge covalent bond in a molecule of hydrogen?

Chemistry
1 answer:
sveta [45]2 years ago
6 0

Answer:

A hydrogen molecule forms from two hydrogen atoms, each with one electron in a 1 s orbital. The two hydrogen atoms are attracted to the same pair of electrons in the covalent bond. The bond is represented either as a pair of “dots” or as a solid line. Each hydrogen atom acquires a helium-like electron configuration. Shared electrons located in the space between the two nuclei are called bonding electrons. The bonded pair is the “glue” that holds the atoms together in molecular units. The hydrogen molecule is the simplest substance having a covalent bond.

Explanation:

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kirill [66]

Answer:

760 mm of Hg

Explanation:

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If there are n , number of gases then ,

P_{total}= P_1+P_2+P_3+\dots +P_n

Here ,

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Hence the total pressure exerted is ,

P_{total}= P_{Gas\ A }+P_{Gas\ B }+P_{Gas\ C }

Substitute ,

P_{total}=( 400 + 220 + 140 )mm\ of \ Hg

Add ,

P_{total}= 760\ mm\ of \ Hg

<u>Hence</u><u> the</u><u> </u><u>total</u><u> pressure</u><u> exerted</u><u> by</u><u> the</u><u> </u><u>gases </u><u>is </u><u>7</u><u>6</u><u>0</u><u> </u><u>mm </u><u>of </u><u>Hg</u><u>.</u>

<em>I </em><em>hope</em><em> this</em><em> helps</em><em>.</em>

4 0
2 years ago
which best describes an element? - a pure substance - a type of a mixture - a pure compound - an impure substance
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An element is a pure substance which means it cannot be broken down by any means.
7 0
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rewona [7]

Answer:

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tatyana61 [14]

Answer:

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Explanation:

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