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Ghella [55]
3 years ago
13

Which statement correctly explains the polarity of the water molecule?. A) The hydrogen end of the molecule has a partial negat

ive charge and the oxygen end has a partial positive charge.. B) The oxygen end of the molecule has a partial negative charge and the hydrogen end has a partial positive charge. . C) Both ends of the molecule have a partial negative charge, which attracts the other water molecule towards itself.
Chemistry
2 answers:
liberstina [14]3 years ago
8 0

<u>Answer:</u> The correct answer is Option B.

<u>Explanation:</u>

Polarity of a molecule arises when difference in electronegativities is present between the atoms.

Water is a molecule which is formed from hydrogen and oxygen atoms.

Electronegativity of oxygen atom = 3.44

Electronegativity of hydrogen atom = 2.1

Difference in electronegativity = (3.44 - 2.1) = 1.34

An atom which is more electronegative will attract a shared pair of electron towards itself and will carry a partial negative charge. And the atom which is less electronegative will carry a partial positive charge.

Hence, in water molecule, hydrogen will carry a partial positive charge and oxygen atom will carry a partial negative charge.

Hence, the correct answer is Option B.

Fudgin [204]3 years ago
7 0
<span>Answer: option B) The oxygen end of the molecule has a partial negative charge and the hydrogen end has a partial positive charge.

Justification:

The electronegativity of an element accounts for its relative ability to attract electrons.

Being oxygen more electronegative than hdyrogen (the electronegativity of oxygen is 3.44 while the electronegativity of the hydrogen is 2.20), the electron density will be displaced toward the oxygen, letting it with a partial negative charge and the hydrogen with a partial positive charge.

Finally, since the charge is not symmetrical distributed around a center of the molecule, the molecule ends being polar.</span>
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A syringe contains 56.05 mL of gas at 315.1 K. What volume will that gas occupy if the temperature is increased to 380.5 K?
Marianna [84]

This is one of the ideal gas laws. Presumably the pressure remains the same so it is not part of the givens.

Formula

V / T = V1 / T1

Givens

  • V = 56.05 mL
  • T = 315.1 degrees Kelvin
  • V1 = x
  • T1 = 380.5  degrees Kelvin

Solution

56.05/315.1 = x/380.5                  Simplify the left.

0.1779 = x / 380.5                        Multiply both sides by 380.5

0.1779 * 380.5 = 380.5x/380.5

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3 years ago
Read 2 more answers
Perform the following conversions:
jek_recluse [69]

Answer :

The conversion used for the temperature from Fahrenheit to degree Celsius is:

^oC=\frac{5}{9}\times (^oF-32)

The conversion used for the temperature from degree Celsius to Kelvin is:

K=^oC+273

(a) 1.06^oF

^oC=\frac{5}{9}\times (^oF-32)

^oC=\frac{5}{9}\times (1.06^oF-32)

^oC=-17.188

The temperature in degree Celsius is, -17.188^oC

K=^oC+273

K=-17.188+273

K=255.812

The temperature in Kelvin is, 255.812 K

(b) 3410^oC

^oC=\frac{5}{9}\times (^oF-32)

3410^oC=\frac{5}{9}\times (^oF-32)

^oF=6106

The temperature in degree Fahrenheit is, 6106^oF

K=^oC+273

K=3410+273

K=3683

The temperature in Kelvin is, 3683 K

(c) 6.1\times 10^3K

K=^oC+273

6.1\times 10^3K=^oC+273

^oC=5827

The temperature in degree Celsius is, 5827^oC

^oC=\frac{5}{9}\times (^oF-32)

5827^oC=\frac{5}{9}\times (^oF-32)

^oF=10456.6

The temperature in degree Fahrenheit is, 10456.6^oF

8 0
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<span>An ionic binary compound consists of cations of one element and anions of another. KI is an ionic binary compound, composed of K cations and I anions. </span>

<span>A molecular binary compound does not consist of discrete ions, but of molecules. H2O is molecular, as is NH3.</span>
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This would be a synthesis reaction

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