Four reasons why

There are four reasons why S03/air raised from sulfur is becoming the predominant sulfonation agent for the manufacture of high-quality anionic surfactants ... 

The four reasons why , which Aristotle attributed to all things which were subject to change, are causa materialis, the material cause causa efficiens, the efficient cause causa formalis, the formal cause, and causa finalis, the final cause. The first three causes exist for the last one, as it is the whole reason that the other three causes are implemented they are to the final cause what the means are to the end, and form the process of which the final cause is the goal. 

The final cause was the most important for Aristotle, just because it was what was actually reached at the end of the process. Aristotle s teaching dominated the way people thought well into the Middle Ages. Thus, the four reasons why were of great importance for western philosophy. 

The hazard assessment identifies the adverse effects that a chemical may cause and investigates the relationship between their magnitude and the dose to which an organism is exposed. A major source of uncertainty is the use of data from tests on laboratory animals (or plants) to investigate toxicity to other species (including humans). There are at least four reasons why there is uncertainty in the application of test data to exposures of humans and wild animals (RCEP, 2003, pp21—22 Rodricks, 1992, ppl58-179) ... 

Describe four reasons why it is desirable to carry out room-temperature bonding of glass chips [844]. (4 marks)... 

Describe four reasons why the actual yield in a chemical reaction is less than the theoretical yield. 

Give four reasons why heterogeneous catalysts are preferred in industrial processes. Exercise 1.4... 

Among solvents that once were commonly used and are now almost completely obsolete are benzene, carbon tetrachloride, 1,1,1-trichloroethane, chloroform, carbon disulphide and the CFCs. They were harmful in a number of ways and safer alternatives have been found for all of them, a trend that will certainly continue. One major reason that is likely to lead to changes of solvent in the future is the need to make recovery easier. There are four reasons why solvents can need recovery because they are unusable in their present state ... 

Give four reasons why it may be desirable to use inserts in a die-casting. 

Embrey (1989) suggested that a large portion of accidents involve operators intentionally ignoring known procedures (Cox and Cox, 1996). Embrey (1989) outlined the following four reasons why operators may opt not to follow procedures ... 

It appears that all those data perfectly corroborate the validity of limit (IV)de of the tube/reptation model. However, there are four reasons why the molecular weight dependence observed in experiments may be modified by factors other than the tube constraints ... 

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