Bio Essay

Topics: Chemical bond, Covalent bond, Atom Pages: 2 (576 words) Published: September 7, 2012
Essay #1:
“Chemical bonds are essential to building the molecules of life. a. In 3 paragraphs, describe the following bond types and how they are significant to life on earth: ionic, covalent (polar and non-polar), hydrogen, and Van der Wahls (interactions).

b. How is energy transferred between these bonds and what role does oxygen play in the formation and breaking of bonds?”

In the world of chemistry, we as humans have the ability to discover the physical sciences that concern the composition, properties, and reactions of substances that surround us daily. According to studies, in order to produce the molecules of life on earth, chemical bonds are vital; ionic, covalent (polar and non-polar), hydrogen, and Van der Wahls interactions are the most significant bond types in relevance to human life. The ionic and covalent bonds are known to be the strongest chemical bonds. An ionic bond forms when two atoms differ so much in electronegativity that one or more electrons are actually transferred from one atom to the other. Ionic bonds generally occur between a metal and a nonmetal. Due to the existence of ionic bonds, elements that normally would not combine because sharing electrons is either not possible or not practical may be combined to form chemical compounds. A covalent bond forms when two atoms share a pair of electrons. The sharing of one pair of electrons produces a single bond whist the sharing of two or three pairs of electrons produces double or triple bonds. If both atoms are equally electronegative, a nonpolar covalent bond forms. Hydrogen and oxygen are both diatomic elements that form nonpolar covalent bonds. If one atom is slightly more electronegative, a polar covalent bond formulates. Water (H2O) is a polar covalent bond. Covalent bonds allow the greatest possible combinations of chemical compounds to take place. Hydrogen bonds, another form of dipole force, formulates when the partially positive hydrogen atom of a polar covalent bond in...
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