6873
After acclimation , groups were exposed to equivalent free - ion Cd concentration ( 4 . 8 +/- 0 . 3 mg / L , Cd ( 2 + ) ) in their respective acclimated salinity to compare survival among salinity treatments .
 Chemical: Cd; Chemical: Cd ( 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: Cd; Chemical: Cd ( 2 + )