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List of orders of magnitude for molar concentration; Factor (Molarity) SI prefix Value Item 10 −24: yM 1.66 yM: 1 elementary entity per litre [1]: 8.5 yM: airborne bacteria in the upper troposphere (5100/m 3) [2]
The numbers 200-900 would be confused easily with 22 to 29 if they were used in chemistry. khīlioi = 1000, diskhīlioi = 2000, triskhīlioi = 3000, etc. 13 to 19 are formed by starting with the Greek word for the number of ones, followed by και (the Greek word for 'and'), followed by δέκα (the Greek word for 'ten').
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.
13596-12-8 AlF 2: aluminium difluoride: 13569-23-8 AlF 2 O: aluminium difluoride oxide: 38344-66-0 AlF 3: aluminium trifluoride: 7784-18-1 AlF 4 K: potassium tetrafluoroaluminate: 14484-69-6 AlF 4 Li: lithium tetrafluoroaluminate: 15138-76-8 AlF 6 K 3: potassium hexafluoraluminate: 13775-52-5 AlF 6 Li 3: lithium hexafluoroaluminate: 13821-20-0 ...
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.
Looking for gifting inspiration? Amazon is tracking the year's top 100 gifts, from cozy weighted blankets to chic mini blenders. Here are our favorites.
Stanley is recalling 2.6 million mugs sold in the U.S. after the company received dozens of consumer complaints, including some users who reported getting burned and requiring medical attention ...
Chemistry, not moral failing, accounts for the brain’s unwinding. In the laboratories that study drug addiction, researchers have found that the brain becomes conditioned by the repeated dopamine rush caused by heroin. “The brain is not designed to handle it,” said Dr. Ruben Baler, a scientist with the National Institute on Drug Abuse.