A balloon has a volume of 3.8 L at standard pressure and at a temperature of 20 Celsius. What is the new volume of the balloon when the pressure drops to 54 kPa and the temperature drops to -15 Celsius?

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?

In a reaction equation, where are the products located? a.) above the arrow b.) to the right of the arrow c.) to the left of the arrow d.) below the arrow

What causes the appearance of lines in a emission spectrum