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This is a list of unsolved problems in chemistry. Problems in chemistry are considered unsolved when an expert in the field considers it unsolved or when several experts in the field disagree about a solution to a problem.
The United States National Chemistry Olympiad (or USNCO) is a contest held by the American Chemical Society (ACS) used to select the four-student team that represents the United States at the International Chemistry Olympiad (IChO). Each local ACS section selects 10 students (or more for larger ACS sections) to take the USNCO National Exam.
LibreTexts' current primary support is from the 2018 Open Textbook Pilot Program award from the Department of Education Organization Act. [7] [10] [5] [11] FIPSE [12] Other funding comes from the University of California Davis, the University of California Davis Library, [5] and the California State University System both through MERLOT and its Affordable Learning Solutions (AL$) program.
One Hundred Thousand Whys (Chinese: 十萬個為什麼) is a popular science book series in China, mostly intended for children. The series is named after former Soviet Union Writer Mikhail Il'in [] 's Сто тысяч почему (Sto tysyach pochemu, literally "A Hundred Thousand Whys"), also published in English as 100,000 Whys: A Trip Around the Room.
A mnemonic is a memory aid used to improve long-term memory and make the process of consolidation easier. Many chemistry aspects, rules, names of compounds, sequences of elements, their reactivity, etc., can be easily and efficiently memorized with the help of mnemonics.
GAMESS (US) can perform several general computational chemistry calculations, including Hartree–Fock method, density functional theory (DFT), generalized valence bond (GVB), and multi-configurational self-consistent field (MCSCF).
Physical chemistry is the study of macroscopic and microscopic phenomena in chemical systems in terms of the principles, practices, and concepts of physics such as motion, energy, force, time, thermodynamics, quantum chemistry, statistical mechanics, analytical dynamics and chemical equilibria.
By 1000 BC, civilizations used technologies that would eventually form the basis of the various branches of chemistry. Examples include the discovery of fire, extracting metals from ores , making pottery and glazes, fermenting beer and wine , extracting chemicals from plants for medicine and perfume , rendering fat into soap , making glass ...