What is a CFC in environmental chemistry?Refrigerants:Refrigerants are some of the most concerning greenhouse gases. They often heat the atmosphere at a rate that can be over 1000 times higher than carbon dioxide. Refrigerants are typically used in air conditioning units and other types of cooling...
Subscripts are widely used in various fields. In mathematics, you might encounter subscripts when working with indices, such as in algebraic expressions, summations, or matrices. In chemistry, subscript is used to denote the number of atoms in a molecule, such as H₂O for water. In programm...
2.1Definition2.2WhyIsGCGettingSoMuchAttention?2.3WhyShouldChemistsPursuetheGoalofGC?2.4BarrierstointroducingGC ECNU 2.1Definition GreenchemistryEnvironmentallybenignchemicalsynthesisAlternativesyntheticpathwaysforpollutionpreventionBenignbydesign AnastasandWarnerDefinition Theutilizationofasetofprinciplesthatreducesor...
Chemistry is a very diverse field. There are many different branches and ways of exploring the chemicals themselves and how the world is made by combinations of them. Answer and Explanation: Some of the main branches of chemistry are:
Fluoroform is a widely used ultra-low temperature refrigerant. Due to the good comprehensive performance of HFC-23, it becomes a very effective and safe CFC-13 (R13, R-13, Freon 13, Freon-13) and R-503 Substitutes, mainly used in environmental test chambers/equipment (thermal shock test ...
I asked.“Wonderful ” said the young man.” It has a tall building and there ‘re two chemistry labs two biology labs and three physics ones. And its library is big and there’re plenty of books in it.”说明他认为这所学校很棒,故D正确。考点:考查故事类短文阅读点评:本文细节题居多,...
Many non-polluting fuels and chemicals that can readily absorb pollutants from the air are being studied and tested to make the air cleaner. One such example is the replacement of CFC in refrigerators. Chemistry provides a detailed understanding of pollutants for interpreting health effects, regulatin...
What is tesselated epithelium ? Where is it found? View Solution Where are CFC found ? View Solution What does ETS stand for ? Where is it found ? View Solution (a) Name the fat storing loose connective fissue. Where is it found ? (b) Where is this tissue found in whales, came...
How is ozone layer useful to us ? View Solution Write the full form of CFC. Give its one harmful effect. View Solution View Solution View Solution View Solution View Solution Exams IIT JEE NEET UP Board Bihar Board CBSE Free Textbook Solutions ...
because as it has no direct emissions. Ozone results from a subtle chemistry taking place in the air, involving “precursors” which are regular pollutants – NOx, hydrocarbons – with the help of sun rays. Calculating – even roughly – the amount of ozone emitted by a country is today cle...