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CHEMICAL REACTIONS
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are the heart of chemistry. People have 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 George Ernst Stahl was the first to speak of chemical reaction, s ....
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.... said that the appearance and disappearance of properties meant that the atomic composition gave the appearance of different properties. He also came up with idea that a molecule of one substance is exactly the same as any other molecule of the same substance.
People like Joseph-Lois Gay-Lussac added to Dalton's concepts with the postulate that th.... |
| Word count: 874 |
Page count: 4 |
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