THE author has made a praiseworthy attempt to provide a number of numerical problems in chemistry, arranged in methodical order for use in schools. Many of the examples are taken from examination papers of Brit
Secondary and tertiary amides have the nitrogen bonded to two and three carbons respectively.(There is an amide counterpart to a quaternary ammonium salt, but it goes by a different name and you might go through introductory organic chemistry without ever seeing an example. –Note 3) Quiz yourse...
Similarly to the other halogens, the iodine atom can also behave as a ChB acceptor in supramolecular chemistry of metal complexes. For example, a Se⋯I chalcogen bond assisted supramolecular dimerization was found in the packing diagram of [PdI2(2-((phenylselanyl)methyl) pyridine)] (UZACEE...
we classified as clonal every cluster in a tumour region for which mutations have a PhyloCCF not significantly different than the PhyloCCF of the mutations in the truncal cluster within the same tumour regions (tested using
Green Chemistry Pollution Remediation Background According to recent statistics, the world's industries produce roughly 140 million tonnes of plastic annually, with a more significant proportion of that amount being released into the environment as garbage [1,2,3,4]. The use of chemicals, detergents...
In general, corrosion inhibitory additives can be classified as inorganic and organic; anodic and cathodic; and nonfilming and filming [20]. Polypeptides can be considered as a good corrosion inhibitory additive due to their more environment friendly nature [21]. Polyaspartate is the strongest ...
Recent years have seen an explosion in the availability of data in the chemistry domain. With this information explosion, however, retrieving relevant results from the available information, and organising those results, become even harder problems. Comp
“STEM belonging is having similar interests and personality traits within a group such that camaraderie prevails between its members”(P34, Female, White background, first generation, first-year Chemistry master's student). “STEM belonging is having a community where you can share interests and ...
As a second child, most of my science toys were hand-me-downs. I also grew up for the majority of my childhood in the seventies. What a time that was! Lawn Darts, Clackers, BB guns, Creepy Crawlers, chemistry kits and so many other toys to permanently damage yourself with! I DID ge...
Pumped groundwater was shipped on dry ice to the UC Davis Analytical Laboratory for water chemistry measurements of electrical conductivity (EC), sodium adsorption ratio (SAR), total organic carbon (TOC), dissolved organic carbon (DOC), NH4-N, NO3-N, SO4-S (soluble S), HCO3, CO3, ...