Q:

What type of bonding holds two or more water molecules together?

A:

Quick Answer

The type of bonding that holds two or more water molecules together is called hydrogen bonding. Water molecules are polar, meaning they have slightly negative and positive regions within the molecule.

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Full Answer

The oxygen region of a water molecule has a slightly negative charge, whereas the hydrogen portions of the molecule take on slightly positive charges. When the partial negative oxygen portion on one water molecule meets up with the partial positive hydrogen side of another water molecule, a weak bond forms. One water molecule can hydrogen bond to four other water molecules. A hydrogen bond is relatively weak, having only about 5 percent the strength of a covalent bond; however, numerous hydrogen bonds are actually quite strong. The hydrogen bonding of water gives it unique qualities.

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Related Questions

  • Q:

    Why is hydrogen bonding only possible with hydrogen?

    A:

    Hydrogen bonding involves the dipole shifts created by polar bonds and occurs between molecules containing polar bonds. Hydrogen is specifically involved because the element has a low electronegativy for a nonmetal and creates a large dipole shift that is strong enough to attract other electronegative atoms from polar bonds in other molecules.

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  • Q:

    Why does ice have a lower density than water?

    A:

    The hydrogen bonding gives water a structure with considerable space between the molecules, making it expand in size and become less dense in a solid state than in a liquid one. Because water is denser than ice, ice cubes float on the surface of water. Hydrogen bonds link each water molecule to an average of 3.4 other water molecules, and the lattice that forms when water freezes has a lot of empty space inside it.

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  • Q:

    What type of bonding is found in sodium chloride?

    A:

    The type of bonding found in sodium chloride is called ionic bonding. Ionic bonding is the attraction between two atoms with opposite charges. In sodium chloride, sodium has a positive charge and chlorine has a negative charge; therefore, they attract one another and form a bond.

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  • Q:

    What happens to water molecules in the light-dependent reaction?

    A:

    During the stage of photosynthesis referred to as the light-dependent reaction, 12 molecules of water begin the process of reacting with six molecules of carbon dioxide to produce one molecule of glucose, six molecules of oxygen and six molecules of water. The presence of light and enzymes within the plant's chloroplasts act as the catalysts for the light-dependent reaction and begin the process by splitting the water molecules into electrons, protons and oxygen. The complete reaction, which also includes the light-independent stage of photosynthesis, can be expressed as 6CO2 + 12H2O + light and plant enzymes €”> C6H12O6 + 6O2 + 6H2O.

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