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Illinois Water exam Questions and Answers Best rated A+ Guaranteed Success Latest Update
What substance combines with leaking chlorine gas to form a white smoke? - 
ANSWER-Ammonia Vapor 
Positive Langelier Index can be produced by adding what? - ANSWER-Caustic soda 
A finished water with a negative Langelier index may be - ANSWER-Corrosive 
High trihalomethane levels may cause - ANSWER-Cancer 
Solutions made from dry fluoride chemicals are required to contain how much of a free 
chlorine residual? - ANSWER-10mg/L 
How should gas chlorination equipment be stored? - ANSWER-Isolated in...