Anaerobic transformations of 1,1,1-trichloroethane (TCA), 1,1-dichloroethane (DCA), and chloroethane (CA) were studied with sludge from a lab-scale, municipal wastewater sludge digester. TCA was biologically transformed to DCA and CA and further to ethane by reductive dechlorination. TCA was also converted to acetic acid and 1,1-dichloroethene (11DCE) by cell-free extract. 11DCE was further biologically converted to ethene. This pathway was confirmed by transformation tests of TCA, DCA and CA, by tests with cell-free extract, and by chloride release during TCA degradation.
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Explanation:convection or advection
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charles law gives the relationship between volume and temperature if pressure and amount of gas are held constant. 1) If the volume of a container is increased, the temperature increases. ... Avagadro's Law- Gives the relationship between volume and amount of gas in moles when pressure and temperature are held constant.
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C) are a result of hydrogen bonding
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Cohesion, surface tension, and adhesion are the properties of water molecules that <u>are a result of hydrogen bonding.</u>
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The definition of a physical change is: A physical change is a type of change in which the form of matter is altered but one substance is not transformed into another. The size or shape of matter may be changed but no chemical reactions occur.
An example of physical change is: crumbling a piece of paper or freezing water into ice.