Denebola and Regulus are two stars that can be viewed in the constellation Leo. These stars look similar when viewed from Earth. However Regulus is much farther away from Earth than Denebola. Which best explains why Regulus and Denebola appear as if they are the same distance from Earth, even though they are not?

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?

Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction: 2al(s)+3cl2(g)→2alcl3(s) what is the maximum mass of aluminum chloride that can be formed when reacting 32.0 g of aluminum with 37.0 g of chlorine? express your answer to three significant figures and include the appropriate units.

The most common form of matter in the universe