A special numbering system is used for fluorinated alkanes prefixed with freon r cfc and hcfc where the rightmost value indicates the number of fluorine atoms the next value to the left is the number of hydrogen atoms plus 1 and the next value to the left is the number of carbon atoms less one zeroes are not stated and the remaining atoms are chlorine.
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We use data to tell stories of businessrelated trends we focus on we hope others take the ideas build on them amp make them better at 36b the number of internet users has.
A leap second is a onesecond adjustment that is occasionally applied to coordinated universal time utc in order to keep its time of day close to the mean solar time as realized by ut1without such a correction time reckoned by earths rotation drifts away from atomic time because of irregularities in the earths rate of rotation since this system of correction was implemented in 1972 27.
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