Did you ever get the answer?
17 hope its correct pls rate 5 star
28 molecul are in mol of ox
500 grams Calcium Nitrate to mol= 3.04715
Aluminium= semimetal (positive charge)
Sulphur= nonmetalic (negative charge)
Al2S3
Its ionic bond coz aluminium and sulphur are making bond w opposite charges.
Hope it helps!!
#MissionExam001
