Acids And Bases

PHYSICAL SCIENCE
CORE KNOWLEDGE: MATTER AND MATERIALS
TOPIC: thorough CHEMISTRY
CLASS NOTES
____________________________________________________________

_____________
1. ORGANIC MOLECULES
Organic chemistry is the of compounds of CARBON excluding CO2, CO, carbonates (CO3) and cyanides (CN-). thither ar millions of these compounds and they range in size from simple molecules with 5 atoms to complex structures with thousands of atoms. Although the important element is carbon, other elements such as hydrogen (H), oxygen(O), nitrogen(N), sulphur(S) and phosphorus(P) are also common 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 convert carbon dioxide into organic compounds through with(predicate) the process of photosynthesis.
6CO2 + 6H2O ? C6H12O6 + 6O2?H > 0
Carbon is also found rude(a)ly in fossil fuels such as coal, oil and natural gas.
Organic compounds are important are important in our daily life. They make 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 other items.

3.



UNIQUE PROPERTIES OF CARBON
Carbon has a few unique properties which are responsible for its behaviour how it reacts and corpse bonds.
Carbon has four 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 straight/un branching (fig. 2) or branched (fig. 3). This property is called catenation.
Because of its position in the periodic table, carbon forms preponderantly covalent bonds with other 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 want to get a full essay, order it on our website: Ordercustompaper.com



If you want to get a full essay, wisit our page: write my paper