13531
The one - electron - reduction potential of [ Co ( III ) ( Ch ) ] ( + ) was positively shifted from 0 . 37 V ( vs SCE ) to 0 . 48 V by the addition of HClO ( 4 ) due to the protonation of [ Co ( III ) ( Ch ) ] ( + ) .
 Chemical: [ Co ( III ) ( Ch ) ] ( + ); Chemical: HClO ( 4 ); Chemical: [ Co ( III ) ( Ch ) ] ( + )
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: [ Co ( III ) ( Ch ) ] ( + ); Chemical: HClO ( 4 ); Chemical: [ Co ( III ) ( Ch ) ] ( + )