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13 Νοε 2022 · Identify three special properties of water that make it unusual for a molecule of its size, and explain how these result from hydrogen bonding. Explain what is meant by hydrogen bonding and the molecular structural features that bring it about.
30 Ιαν 2023 · Why does a hydrogen bond occur? Since the hydrogen donor (N, O, or F) is strongly electronegative, it pulls the covalently bonded electron pair closer to its nucleus, and away from the hydrogen atom.
7 Οκτ 2021 · Hydrogen bonds contribute to the many properties water molecules have that make them so important to living organisms: An excellent solvent – many substances can dissolve in water; A relatively high specific heat capacity; A relatively high latent heat of vaporisation; Water is less dense when a solid; Water has high surface tension and ...
→Why does hydrogen bonding occur in water? Hydrogen bonding occurs in water due to the difference in electronegativity between hydrogen and oxygen atoms. The hydrogen atoms of one water molecule are positively charged, while the oxygen atoms are negatively charged.
21 Σεπ 2022 · The hydrogen bonding that occurs in water leads to some unusual, but very important, properties. Most molecular compounds that have a mass similar to water are gases at room temperature. Because of the strong hydrogen bonds, water molecules are able to stay condensed in the liquid state.
In chemistry, a hydrogen bond (or H-bond) is primarily an electrostatic force of attraction between a hydrogen (H) atom which is covalently bonded to a more electronegative "donor" atom or group (Dn), and another electronegative atom bearing a lone pair of electrons—the hydrogen bond acceptor (Ac).
Water as a "perfect" example of hydrogen bonding. Notice that each water molecule can potentially form four hydrogen bonds with surrounding water molecules. There are exactly the right numbers of δ+ hydrogens and lone pairs so that every one of them can be involved in hydrogen bonding.
