What is the specific heat of silicon if the temperature of a 8.11 g sample of silicon is increased by 3.80 °C when 22.1 J of heat is added? Your answer should have 3 numbers after the decimal place, followed by a space, followed by J/gºC.​

Why do sodium and neon have vastly different chemical and physical properties despite having similar atomic masses?

Explain which group an element with the electron configuration 1s2 2s2 2p6 3s2 3p6 3d1 4s2 belongs to.

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.