When we talk about intermolecular forces, we generally refer to three types. The weakest forces are those of dispersion. The second is a stronger and more dominant force. If it is present.
That occurs only when we have polar molecules, dispersion forces being identified with all molecules, including non-polar molecules and polar molecules, and then having rather strong dipoledipale forces. It has a distinct name because it is an intermolecular force that arises when a polar molecule has a hydrogen that is directly coupled to a nitrogen, oxygen, or florine. The intermolecular force in this scenario is so intense that we name it hydrogen. If we bind for the first molecule, To draw its Lewis structure, we can see that a hydrogen is connected to a carbon.
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Classify each of the following materials as an element, compound, heterogeneous mixture, or a homogeneous mixture:
(a) air
(b) water
(c) diamond
(d) soil
Air is a homogeneous mixture, water is a compound, diamond is an element, and soil is heterogeneous.
(a) Air is a homogeneous mixture of gases, primarily nitrogen (78%), oxygen (21%), and trace amounts of other gases such as argon, carbon dioxide, and neon.
Air is a mixture of several different elements and compounds and the composition of air can vary depending on location and altitude.
(b) Water is a compound consisting of two hydrogen atoms and one oxygen atom, chemically represented as H2O. It is a clear, odorless, and tasteless liquid that is essential for all forms of life on Earth.
Water is a pure substance and not a mixture of any other compounds or elements.
(c) Diamond is an element made up entirely of carbon atoms. It is a naturally occurring mineral and is one of the hardest and most durable substances known.
It is a pure substance and not a mixture of any other compounds or elements.
(d) Soil is a heterogeneous mixture of organic and inorganic materials such as minerals, rocks, organic matter, water, and air.
Soil is composed of a variety of different compounds and elements and it can vary greatly in composition depending on the location and the environment.
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