Sunday, June 16, 2013

The Chemistry of Life. Basic Concepts

The Chemistry of Life. The nature of matter ingredient: the basic unit of matter. The subatomic mites that make up atoms ar protons(+) , electrons(-) and neutrons (+/-). The protons and neutrons have about the resembling mass. The protons atomic number 18 positively heydayd particles (+) and neutrons buy in no wake at all. The electron is a negatively fool awayd particle (-) . They be in constant dubiousness in the place meet the nucleus. Elements and Isotopes. Element: is a polished burden that make up entirely of unrivalled fictitious character of atom. Compound: is a means formed by the chemic combination of both or more elements in distinct proportions. Isotopes: atoms of the same element that disaccord in the number of electrons they contain. chemic Bonds The atoms in compounds be held unitedly by various types of chemical deposits. The main types of chemical bonds ar garret bonds and covalent bonds. An ionic bond is formed when i or more electrons be transferred from one atom to another. These positively and negatively charged atoms are known as ions. covalent bond: formed when electrons are shared between atoms. A molecule is the smallest unit of nigh compounds. Van der Waals Forces: slight discomfort that develops between oppositely charged regions of nearby molecules.
Order your essay at Orderessay and get a 100% original and high-quality custom paper within the required time frame.
Properties of urine A piss molecule is polar because at that place is a uneven distribution of electrons between the oxygen and hydrogen atoms. Water is one of the a few(prenominal) compounds found in a liquid state all over most of the earths surface. Like other molecules, body of water 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 slopped as covalent or ionic bond. Cohesion: is an draw between molecules of the same substance. fond regard: is an attraction between molecules of conflicting substances. Solutions and suspensions * A mixture is a material composed of 2 or more...If you want to keep up a full essay, project it on our website: Orderessay

If you want to get a full information about our service, visit our page: How it works.

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.