Is 2AI + 3O2= 2AI2O3 balanced or unbalanced

Anurse practitioner prepares an injection of promethazine, an antihistamine used to treat allergic rhinitis. if the stock bottle is labeled 25 mg/ml and the order is a dose of 11.0 mg , how many milliliters will the nurse draw up in the syringe?

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?