PHYSICAL SCIENCE CORE KNOWLEDGE: MATTER AND MATERIALS military issue: thorough CHEMISTRY CLASS NOTES ____________________________________________________________ _____________ 1. ORGANIC MOLECULES Organic chemical science is the of compounds of CARBON excluding CO2, CO, carbonates (CO3) and cyanides (CN-). thither ar millions of these compounds and they range in surface from simple molecules with 5 atoms to complex structures with thousands of atoms. Although the significant element is carbon, early(a) elements such as hydrogen (H), oxygen(O), nitrogen(N), sulphur(S) and phosphorus(P) are also harsh in these molecules. 2. SOURCES OF CARBON The main source of carbon in organic compounds is carbon dioxide (CO2) in the air. Plants use sunlight to change carbon dioxide into organic compounds through with(predicate) the process of photosynthesis. 6CO2 + 6H2O ? C6H12O6 + 6O2?H > 0 Carbon is also put together rude(a)ly in fossil fuels suc h as coal, oil and natural gas. Organic compounds are important are important in our daily life. They admit up a large of each living organisms and are found in the food we eat. They are also used to make products such as the attire we wear, medicines, plastics, washing powders, dyes and many different items. 3.

UNIQUE PROPERTIES OF CARBON Carbon has a few comical properties which are responsible for its behaviour how it reacts and corpse flummoxs. Carbon has foursome valence electrons and they are all accessible for bonding. It forms strong covalent carbon-to-carbon bonds and allows long chains to form. The chains freighter either be st! raight/un branching (fig. 2) or branched (fig. 3). This property is called catenation. Because of its come out in the periodic table, carbon forms preponderantly covalent bonds with early(a) compounds. The C C bonds are rigorously covalent (non-polar) because the departure in the electronegativity of the carbon (2.5 2.5) atoms is zero. The C H bond is also non-polar because the difference (2.5 2.1) is very low. The way out of...If you motivation to get a full essay, order it on our website:
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