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Lera25 [3.4K]
4 years ago
7

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

Chemistry
2 answers:
Hoochie [10]4 years ago
6 0

Answer:

D) hydrogen bonds

Explanation:

Hydrogen bonds are <em>intermolecular forces</em> — 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 <em>intramolecula</em>r — they occur within a single molecule.

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

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

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

stiks02 [169]4 years ago
4 0

Answer:

Hydrogen Bonds

Explanation:

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Novay_Z [31]

The bond dissociation energy of the Cl - Cl bond is -958 kJ mol^-1.

<h3>What is the dissociation enthalpy?</h3>

Given that;

H-H bond energy =  435 kJ mol^-1

H-Cl bond energy = 431 kJ mol^-1

ΔHfO of HCL(g) = -92kJ mol^-1

Bond dissociation enthalpy of the Cl-Cl bond = x

-92 = 435  +  431 + x

x = -92 - (435  +  431)

x = -958 kJ mol^-1

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2 years ago
What is the independent variable of the penny lab
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The independent variable in the experiment is the soap and the dependent variable in the experiment is the number of water drops on the surface of the penny. The control is the penny without soap.
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3 years ago
Which of the following samples would be the most compressible?
Andrej [43]

Answer:

CO2 (g)

Explanation:

In solids the interatomic or intermolecular space is least . It is most pronounced in gases . That is why inter molecular or interatomic attraction is least in gases . That is why gas flows .

Hence , when we try to compress a gas , due to inter molecular space , it is most likely to get compressed . It will be least compressed when we try to compress a solid because of lack of intermolecular space .

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A balloon filled with 6.0 MLS of air at a pressure of 15 PSI. when placed into a bell jar, the pressure decreased to 2.4 PSI. wh
lyudmila [28]

Answer:

2.6

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2.6

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3 years ago
A city continuously disposes of effluent from a wastewater treatment plant into a river. The minimum flow in the river is 130 m3
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Answer:

2.54\ \text{mg/L}

Explanation:

C = Allowable concentration = 1.1 mg/L

Q_1 = Flow rate of river = 130\ \text{m}^/\text{s}

Q_2 = Discharge from plant = 37\ \text{m}^3/\text{s}

C_1 = Background concentration = 0.69 mg/L

C_2 = Maximum concentration that of the pollutant

The concentration of the mixture will be

C=\dfrac{Q_1C_1+Q_2C_2}{Q_1+Q_2}\\\Rightarrow C_2=\dfrac{C(Q_1+Q_2)-Q_1C_1}{Q_2}\\\Rightarrow C_2=\dfrac{1.1(130+37)-130\times 0.69}{37}\\\Rightarrow C_2=2.54\ \text{mg/L}

The maximum concentration that of the pollutant (in mg/L) that can be safely discharged from the wastewater treatment plant is 2.54\ \text{mg/L}.

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