If 1 mol of XOs contains the same number of atoms as 60g of XO3, what is the molar mass of XO2?（Relative atomic masses：0 = 16.0）​

What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.