Calculate the number of moles in 3.025 x 10^28 atoms of nacl. 1.0 mol nacl 5.02 x 10^4 mol nacl 5.02 x 10^50 mol nacl 1.78 x 10^39 mol nacl

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?

Which suspect most likely committed the robbery and how do you know

Which metals are called noble metals