19363
Model calculations indicate that the main OH ( * ) radical combination product H2O2 in pure water has formation kinetics similar to that of Br3 ( - ) in 6 M Br ( - ) solutions .
 Chemical: OH ( * ); Chemical: H2O2; Chemical: Br3 ( - ); Chemical: Br ( - )
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: OH ( * ); Chemical: H2O2; Chemical: Br3 ( - ); Chemical: Br ( - )