At very high temperatures, copper (II) sulfate undergoes the reaction CuSO4(s) -> CuO(s) + SO3(g) i. What kind of reaction is this?

ii. If 319.22 g CuSO4(s) reacted completely in the reaction, how many grams of CuO(s) would be produced?

Asample of radium-226 will decay 1/4 of its original amount after 3200years. what is the half-life of radium-226?

What is driving behind plate tectonics (plate movment)? a) gravity only b) inertia c) convection and gravity d) the sun theres no option for science so i picked chemistry. plz

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.