always known that they exist. The Ancient Greeks were the firsts

to speculate on the composition of matter. They thought that it

was possible that individual particles made up matter.

Later, in the Seventeenth Century, a German chemist named

Georg Ernst Stahl was the first to postulate on chemical

reaction, specifically, combustion. He said that a substance

called phlogiston escaped into the air from all substances during

combustion. He explained that a burning candle would go out if a

candle snuffer was put over it because the air inside the snuffer

became saturated with phlogiston. According to his ideas, wood

is made up of phlogiston and ash, because only ash is left after

combustion. His ideas soon came upon some contradiction. When

metal is burned, its ash has a greater mass than the original

substance. Stahl tried to cover himself by saying that

phlogiston will take away from a substance's mass or that it had

a negative mass, which contradicted his original theories.

In the Eighteenth Century Antoine-Laurent Lavoisier, in

France, discovered an important detail in the understanding of

the chemical reaction combustion, oxigine

Laser chemistry looks promising and is a way that chemistry is

chemical reactions. It has to do with the radiant energy of all

(exothermic), endoergic (endothermic), and aergic (athermic). In

and the burning of glucose in our bodies gives off both energy

like the reactants are. They cannot make impossible reactions

original state. Energy as light is released when the lucifrase

a mostly complete knowledge of chemical reactions. There are now

Some common words found in the essay are:
Amedeo Avogadro, Kinetics Kinetics, California Berkly, Ernst Stahl, Robert Merrifeild, University Illinois, Nineteenth Century, Joseph-Lois Gay-Lussac, Lavoisier France, chemical reactions, Ancient Greeks, chemical reaction, reaction reaction, reaction rate, acids bases, reaction reactants, reaction called, chemical reactions chemistry, oxidation goes, reaction energy, reactions reactions, acids bases react, reaction oxidation goes,
Approximate Word count = 2118
Approximate Pages = 8 (250 words per page double spaced)