Catalysts: Catalysts are key to many reactions both in chemistry and in biology. They speed up or lower the activation energy needed for a reaction to occur, without being used up in the process. Answer and Explanation: Learn more about this topic: ...
Enzymes are catalysts that help chemical reactions to proceed more rapidly. Enzymes regulate the biochemical reactions by inhibiting the activation energy and enhancing the rate of reaction.Answer and Explanation: Enzymes used in DNA replication: DNA polymerase:The DNA polymerase enzyme creates new DNA...
The catalysts may be preformed and then used to polymerize olefins or the catalysts may be formed in situ during polymerization by adding the separate components to the polymerization reaction. The catalyst will be formed when the two components are combined at a temperature within the range from ...
If pharma companies invest in green chemistry, they can have more optimised manufacturing processes. For example, German start-up Dude Chem managed to recover expensive chiral catalysts and perform reactions in water without having to license “designer surfactants”. This led to a reduction of 82%...
The ammonia needed for the SCR reaction comes from the hydrolysis of a urea solution: CO(NH2)2 + H2O CO2+ 2NH3COMPLETE SCR SYSTEM WORKING The SCR system adopts an injection system with compressed air assistance. The urea solution supply pump ...
One of the latest trends in the industry has been to replace organic-tin catalysts by other organic compounds. Silicone School Everything you need to know about silicone technologies. Read it Now! RTV elastomer silicone properties RTV-2 products feature a series of high-performance ...
The reaction proceeds predominantly through a γ-attack at the Cu-allenylidene intermediates by sulfur ylides to provide the corresponding indolines in good yield and high enantioselectivity (up to 91% ee). In contrast, the reaction of 4-trifluoromethyl-4-propargyl-benzoxazinanones with sulfur ...
Catalytic converters are used in cars to reduce the effect of exhaust fumes on the atmosphere. Which of the following statements regarding them are true ? I. The main component of the converter is a ceramic honeycomb coated with precious metals. ...
To break up the PFOS molecules and thus degrade them in water, the researchers used piezocatalysis for the first time. “Piezo” refers to piezoelectricity, an electrical charge that is generated during mechanical deformation, and “catalysis” means accelerating a chemical reaction with suitable subst...
What is a temporary complex formed when an enzyme binds to its substrate molecules called? What are some systems of enzyme classification? What is the chemical nature of enzymes? What can be used up by a reaction? a. active site b. enzyme c. product d. substrate ...