Which of the following is an example use of a noble gas? a. making steel drums c. camera batteries b. fluorescent light tubes d. xerox machines

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.

State one important difference between a physical change and a chemical change?

Alithium atom has three protons, three neutrons, and three electrons. what is the overall charge on this atom?