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professor190 [17]
4 years ago
10

Please help pleaseeee

Chemistry
1 answer:
mylen [45]4 years ago
8 0

Answer:

The answer is C) two covalent bonds between adjacent molecules.

Explanation:

The exact definition of a double bond is, "a chemical bond in which two pairs of electrons are shared between two atoms. "<em> - Taken from Google Dictionary</em>

<em />

<em>The following information was taken from Wiki to help you understand the question, and so that no one thinks that I plagiarized: </em>

"A double bond in chemistry is a chemical bond between two chemical elements involving four bonding electrons instead of the usual two. The most common double bond occurs between two carbon atoms and can be found in alkenes. Many types of double bonds exist between two different elements."

I hope this helps!

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>
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For the reaction Cu2S(s)⇌2Cu+(aq)+S2−(aq)Cu2S(s)⇌2Cu+(aq)+S2−(aq), the equilibrium concentrations are as follows: [Cu+]=1.0×10−5
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Answer:

1x10⁻¹²

Explanation:

  • Cu₂S(s) ⇌ 2Cu⁺(aq) + S²⁻(aq)

At equilibrium:

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The equilibrium constant for the the reaction can be written as:

  • Keq = [Cu⁺]² * [S²⁻]

[Cu⁺] is squared because it has a stoichiometric coefficient of 2 in the reaction. <em>Cu₂S has no effect on the constant because it is a solid</em>.

Now we can <u>calculate the equilibrium constant</u>:

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A dependent variable is:
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Similarly, water contains hydrogen and oxygen. Recall that hydrogen bonds are formed when hydrogen is covalently bonded to highly electronegative elements. Hence, water in the liquid state exhibits strong hydrogen bonding. The unique type of dipole-dipole interaction in liquid water is actually hydrogen bonding, hence the answer.

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