6439
It catalyzes the hydration of carbon dioxide ( CO ( 2 ) ) to bicarbonate ( HCO ( 3 ) - ) and the corresponding dehydration of HCO ( 3 ) - in acidic medium with regeneration of CO ( 2 ) .
 Chemical: carbon dioxide; Chemical: CO ( 2 ); Chemical: bicarbonate; Chemical: HCO ( 3 ) -; Chemical: HCO ( 3 ) -; Chemical: CO ( 2 )
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: carbon dioxide; Chemical: CO ( 2 ); Chemical: bicarbonate; Chemical: HCO ( 3 ) -; Chemical: HCO ( 3 ) -; Chemical: CO ( 2 )