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Q. What is chlorofluorocarbon?
A chemical is some substance that has a definite composition. Ozone is a chemical which is made up of three particles of oxygen. Ozone forms a thick blanket on top of the clouds in the stratosphere. This layer of ozone protects Earth as of overexposure to ultraviolet radiation from the Sun. You are most likely familiar with the damage that exposure to ultraviolet radiation can do to your skin in the form of sunburn. Ultraviolet radiation can as well harm other animals and plants. In the 1980s scientists recognized that the ozone layer around Earth was becoming measurably thinner in some spots. In the 1970s scientists had experiential that large quantities of chlorofluorocarbons (CFCs) had accumulated in Earth's atmosphere.
CFCs are chemicals which contain fluorine, chlorine and carbon. CFCs were utilized as coolants in refrigerators and air conditioners and as propellants in spray cans because they were considered relatively nonreactive. A few scientists hypothesized that there might be a connection between the concentration of CFCs in the atmosphere and the thinning of the ozone layer.
A reaction has a rate constant of 1.22x10^-4 /s at 28 C and 0.230 /s at 75.0 C. 1. Determine the activation barrier for the reaction in kj/mol. 2. What is the value of the rate co
what is the graph between magnification and image distance for a convex lens..and how can we find the focal length for the lens using the graph? Ans) The distance between the len
The laboratory production of sulphuric acid involves the catalysed oxidation of sulphur in oxygen, followed by the separation of the resulting sulphur trioxide (SO 3 ) from sulphur
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Because Nucleus is composed of protons and neutrons..
Explain Lewis base and a nucleophile Species A is a. Carbon B is an electrophile. Carbon C is a leaving group towards carbon B but also a nucleophile towards carbon D. Carbon D
Could you please provide me the priority order of polyfunctional prefixes
How are the enzymes created in eukariotic cells?
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