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2 years ago

Is the H¬O bond in water nonpolar covalent, polar covalent, or ionic? Define each term, and explain your choice.

Chemistry

1 answer:

nydimaria [60]2 years ago

5 0

Like hydrogen fluoride (HF), water (H2O) is a polar covalent molecule.

The electron pair in a non-polar covalent bond is shared equally by the two bonded atoms, but in a polar covalent bond, the electron pair is shared unequally by the two bonded atoms. Differences in electronegativity are what lead to polar bonding.

The entire transfer of valence electron(s) between atoms is referred to as an ionic bond. It is a kind of chemical connection that produces two ions with opposing charges. In ionic bonding, the nonmetal takes the lost electrons to form a negatively charged anion while the metal loses them to become a positively charged cation.

Learn more about Polar covalent bond here-

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What is an absorption spectrum?

Natasha2012 [34]

Answer: option A. the colors absorbed when an element gains energy.

Justification:

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3 years ago

Some elements achieve stable electron configurations through the transfer of _________ between atoms.

Law Incorporation [45]

Shared electrons between atoms

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3 years ago

What is the molality of a solution prepared by dissolving 75.8 g of ethylene glycol, HOCH2CH2OH, in 1.55 L of water? Assume the

GaryK [48]

Answer:

0.787 mol.Kg⁻¹ or 0.787 m

Explanation:

Data Given:

Mass = m = 75.8 g

Volume = V = 1.55 L = 1550 mL

M.Mass of Ethylene Glycol = 62.07 g/mol

Density of water = d = 1.0 g/mL

To Find:

Molality = ??

Molality is a unit of concentration and is defined as the number of moles of solute per Kg of a solvent.

Molality = Moles of Solute / Kg of Solvent --- (1)

First Calculate Moles of Solute as;

Moles = Mass / M.Mass

Moles = 75.8 g / 62.07 g/mol

Moles = 1.22 moles

Secondly calculate mass of water as,

mass of water = density × volume

mass of water = 1.0 g/mL × 1550 mL

mass of water = 1550 g or 1.55 Kg

Now, putting values of moles and mass of solvent in equation 1,

Molality = 1.22 mol / 1.55 Kg

Molality = 0.787 mol.Kg⁻¹ or 0.787 m

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3 years ago