What is the specific heat of a substance if 1450 calories are required to raise the temperature of a 240g sample by 20℃?

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

Solar energy is energy from the sun that is converted into thermal or energy. a. nuclear b. mechanical c. electrical d. chemical

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.