Asurface area of a sphere can be approximated as follows: surface area=4r^2 where the radius of the sphere is a constant that is roughly equal to 3 using the simple approximation above, calculate the surface area of a sphere with a radius of 2

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules

Which of the following words describe the reality that the universe looks the same from various perspective

Which sample at stp has the same number of atoms as 18 liters of ne at stp