nuclear reactions
Chemical reactions are the heart of chemistry. People have always known that they exist. The Ancient Greeks were the first 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 George Ernst Stahl was the first to postulate on chemical reaction. He said that a substance called phlogiston escaped into the air from all substances duringcombustion. 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. Stahl also said that phlogis
He also came up with idea that a molecule of one substance is exactly the same as any other molecule of the same substance. ton will take away from a substance's mass or that it had a negative mass, which contradicted his original theories. He said that all gasses at the same pressure, volume and temperature contain the same number of particles. , Bibliography Bibliography"Chemical Reactions," Webster Encyclopedia. He said that combustion was a chemical reaction involving oxygen and another combustible substance, such as wood. , 1970Pauling, Linus and Peter, Chemistry, W. People like Joseph-Lois Gay-Lussac added to Dalton's ideas with the postulate that the volumes of gasses that react with each other are related. There are now many classification systems to classify the different types of reactions. , General Chemistry: Experimental and Theory, Holt, Rhinehart, and Winston Inc. From the work of these and many other chemists, we now have a mostly complete knowledge of chemical reactions. Dalton also said that the appearance and disappearance of properties meant that the atomic composition dictated the appearance of different properties.
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