(A) In early days, hydrochloric acid was (B) done by (C) heating a mixture of sodium28/64Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction. (A) In early days, hydrochloric acid was (B) done by (C) heating a mixture of sodium chloride (D) with iron sulfaceIn early daysdoneheatingwithGiải thíchĐáp án : B done -> made To be made by: được tạo thành bởi cái gì