How many moles of sulfuric acid will react with 18 mol of aluminum?

Which of the following elements would you expect to have the lowest ionization energy value? fluorine, lithium, neon, nitrogen

If you add 10ml of hot water to 10ml of cold water and the change in tempature 8°c calculate how much energy is gained by the cold water

An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.