Chemistry essay and obj answer waec 2021 Chemistry essay and obj answer 2021

CHEMISTRY OBJ 1-10: CDBAAAACAD 11-20: CBBCDCCADB 21-30: CACCABACBC 31-40: DBCBDCBABD 41-50: CBBCCABDDA   (1a) A molecular formula consists of the chemical symbols for the constituent […]