Water being purified using aluminum salts and a base is an ...

[Charlie]

Water being purified using aluminum salts and a base is an example of
 
  A) a physical separation.
  B) a chemical reaction.
  C) an acid-base reaction.
  D) a chemical separation.
  E) none of the above

Question 2

Allowing water to cascade or bubble in a fountain during the purification process is an example of
 
  A) a gas dissolving in a liquid.
  B) a chemical reaction.
  C) ion exchange.
  D) a solid dissolving in a liquid.
  E) only a and b

[Liamb2179]

Answer to Question 1

Answer: A

Answer to Question 2

Answer: A

[Charlie]

TYSM

[nguyenhoanhat]

Thanks for the timely response, appreciate it