18367
Freshwater with up to 120 mg / L Ca ( 2 + ) as CaSO4 , 250 mg / L Mg ( 2 + ) as MgSO4 , or 250 mg / L Na ( + ) as NaHCO3 did not provide protection against Ni toxicity .
 Chemical: Ca ( 2 + ); Chemical: CaSO4; Chemical: Mg ( 2 + ); Chemical: MgSO4; Chemical: Na ( + ); Chemical: NaHCO3; Chemical: Ni
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: Ca ( 2 + ); Chemical: CaSO4; Chemical: Mg ( 2 + ); Chemical: MgSO4; Chemical: Na ( + ); Chemical: NaHCO3; Chemical: Ni