[PICTURE ATTACHED] HEELPP

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?

Match the mixture with the substance// i really need on this guys (it’s a pic btw)

Element before carbon on the periodic table