23789
The temperature dependences of the rate constants can be represented by the following expressions : kBF ( 230 - 370 K ) = ( 9 . 94 +/- 0 . 76 ) x 10 ( - 13 ) exp [ - ( 387 +/- 22 ) / T ] cm ( 3 ) molecule ( - 1 ) s ( - 1 ) and kECH ( 230 - 370 K ) = 1 . 05 x 10 ( - 14 ) ( T / 298 ) ( 5 . 16 ) exp ( + 1082 / T ) cm ( 3 ) molecule ( - 1 ) s ( - 1 ) .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None