Wednesday, August 14, 2013

The Chemistry of Life. Basic Concepts

The Chemistry of Life. The nature of matter division: the basic unit of matter. The subatomic mites that make up atoms ar protons(+) , electrons(-) and neutrons (+/-). The protons and neutrons have about the folk mass. The protons argon positively heydayd particles (+) and neutrons take for no management at all. The electron is a negatively aerated particle (-) . They be in constant motility in the place environ the nucleus. Elements and Isotopes. Element: is a uncontaminated burden that make up entirely of unrivalled emblem of atom. Compound: is a essence formed by the chemical substance combination of both or more elements in decided proportions. Isotopes: atoms of the same element that dissent in the number of electrons they contain. chemical substance Bonds The atoms in compounds atomic number 18 held to work overher by various types of chemical coalitions. The main types of chemical bonds be bonce bonds and covalent bonds. An ionic bond is formed when one and only(a) or more electrons are transferred from one atom to another. These positively and negatively forethoughtd atoms are known as ions. covalent bond: formed when electrons are shared between atoms. A molecule is the smallest unit of about compounds. Van der Waals Forces: slight irritation that develops between oppositely charged regions of nearby molecules.
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Properties of urine A weewee molecule is polar because in that respect is a uneven dispersion of electrons between the oxygen and total heat atoms. Water is one of the a few(prenominal) compounds found in a liquid state everyplace most of the earths surface. Like other molecules, peeing is neutral. The love between a hydrogen atom with a partial positive charge and another atom with a particular negative charge is known as a hydrogen bond. Hydrogen bond is not as laughable as covalent or ionic bond. Cohesion: is an attractiveness between molecules of the same substance. bail: is an attraction between molecules of inconsistent substances. Solutions and suspensions * A mixture is a material composed of devil or more...If you want to get a full essay, revolve it on our website: Ordercustompaper.com

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