Which of the following interactions would not involve a dipole? A. Na+ and CCl4

B. HBr and Ca+2

C. NH3 and CO2

D. C2H5OH and F-

What’s a special glass that most beakers are made of

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.

What is the most common reason for matter changing its state?