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3 years ago

I need some help please,, Which of the following is a result of intermolecular forces?

Chemistry

2 answers:

Hoochie [10]3 years ago

6 0

Answer:

D) hydrogen bonds

Explanation:

Hydrogen bonds are intermolecular forces — they are the forces of attraction between two different molecules.

For example, the partially positive H atom in HF is strongly attracted (H-bonded) to the partially positive F atom in a different HF molecule:

H-F···H-F.

All the other items are intramolecular — they occur within a single molecule.

A) Electronegativity. Wrong. Arises between the two atoms that are bonded together in a single molecule.

B) Double bonds. Wrong. Occur between two adjacent bonds in a single molecule, e.g., propene, CH₃CH=CH₂.

C) Covalent bonds. Wrong. Occur in a single molecule, e.g., methane, CH₄.

stiks02 [169]3 years ago

4 0

Answer:

Hydrogen Bonds

Explanation:

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3 years ago

Write the balanced COMPLETE ionic equation for the reaction when aqueous NiCl₂ and aqueous Na₂S are mixed in solution to form so

Reptile [31]

Answer:

Explanation:

The chemical reaction of the well-balanced equation is as follows:

$\mathbf{2NiCl_{2(aq)}+2Na_2S_{(aq)} \to 4NaCl_{(aq)}+2NiS_{s}}$

The aforementioned reaction's ionic equation is:

$\mathbf{2Ni^{2+}_{(aq)}+4Cl^-_{(aq)}+ 4Na^+_{(aq)}+2S^{2-}_{(aq)} \to 4Na^+_{(aq)}+4Cl^-_{(aq)}+2NiS_{(s)}}$

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3 years ago

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il63 [147K]

Answer:

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2 years ago

Use the standard enthalpies of formation for the reactants and products to solve for the ΔHrxn for the following reaction. (The

Rudiy27

1. Remember (sum of products) - (sum of reactants)
So ΔHrxn = 2 ΔHf [H2(g)] + ΔHf [Ca(OH)2(s)] - 2 ΔHf [H2O(l)] - ΔHf [Ca(s)]
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Do the math and you'll have the answer. BTW the ΔHf [H2(g)] and ΔHf [Ca(s)] were 0 because these are elements in their standard states.

HOPE THIS HELPS ;)

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3 years ago

Read 2 more answers

Unlike homogeneous solutions, the

morpeh [17]

I think A is the answer

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3 years ago