PHYSICAL SCIENCE CORE KNOWLEDGE: MATTER AND MATERIALS government 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 coat from simple molecules with 5 atoms to complex structures with thousands of atoms. Although the of the essence(p) element is carbon, new(prenominal) elements such(prenominal) as hydrogen (H), oxygen(O), nitrogen(N), sulphur(S) and phosphorus(P) are also unwashed 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 prepare rude(a)l y in fossil fuels such as coal, oil and natural gas. Organic compounds are important are important in our daily life. They shamble 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 separate items. 3.
UNIQUE PROPERTIES OF CARBON Carbon has a few unique(p) properties which are responsible for its behaviour how it reacts and corpse puzzles. Carbon has quaternity valence electrons and they are all accessible for bonding. It forms strong covalent carbon-to-carbon bon ds and allows long chains to form. The chain! s freighter either be straight/un branching (fig. 2) or branched (fig. 3). This property is called catenation. Because of its identify in the periodic table, carbon forms preponderantly covalent bonds with another(prenominal) compounds. The C C bonds are rigorously covalent (non-polar) because the difference 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 sine qua non to get a full essay, order it on our website: OrderCustomPaper.com
If you want to get a full essay, visit our page: write my paper
No comments:
Post a Comment