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Chemistry History
Chemistry is a branch of science that has been around for a long time. In fact, chemistry is known to date back to as far as the prehistoric times. Due to the amount of time chemistry takes up on the timeline, the science is split into four general chronological categories. The four categories are: prehistoric times - beginning of the Christian era (black magic), beginning of the Christian era - end of 17th century (alchemy), end of 17th century - mid 19th century (traditional chemistry) and mid 19th century - present (modern chemistry).
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Time Intervals
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Specific Times
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Events
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Description
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Prehistoric Times -
Beginning of the Christian Era (Black Magic) |
1700 BC
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King Hammurabi's
reign over Babylon
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Known metals were recorded and listed in conjunction with heavenly bodies. |
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430 BC
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Democritus
of ancient Greece
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Democritus proclaims the atom to be the simplest unit of matter. All matter was composed of atoms. | |
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300 BC
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Aristotle of ancient Greece
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Aristotle declares the existence… |
This book is specifically designed to help students study and revise for the tests and examinations which comprise the assessment for Higher Grade Chemistry.
Each unit (Energy Matters, The World of Carbon and Chemical Reactions) is covered with a list of learning outcomes, word lists, basic knowledge and understanding, prescribed practical activities (PPAs) and a glossary of chemical terms. the core information required to succeed in this subject is clearly and accessibly presented in this essential revision and reference guide.
"synopsis" may belong to another edition of this title.
Organic chemistry is the study of the structure, properties, composition, reactions, and preparation of carbon-containing compounds. Most organic compounds contain carbon and hydrogen, but they may also include any number of other elements (e.g., nitrogen, oxygen, halogens, phosphorus, silicon, sulfur).
Originally limited to the study of compounds produced by living organisms, organic chemistry has been broadened to include human-made substances (e.g., plastics).
Organic chemistry is a highly creative science that allows chemists to create and explore molecules and compounds. Organic chemists spend much of their time developing new compounds and finding better ways of synthesizing existing ones.
Organic compounds are all around us. Many modern materials are at least partially composed of organic compounds. They’re central to economic growth, and are foundational to the fields of biochemistry, biotechnology, and medicine. Examples of where you can find organic compounds include agrichemicals, coatings, cosmetics, detergent, dyestuff, food, fuel, petrochemicals, pharmaceuticals, plastics, and rubber.
Virtually all biotechnology (“biotech”) products are the result of organic chemistry. Biotech involves using living organisms and bioprocesses to create or modify products for a specific use. For example…