Calculate the mass of silver formed by heating 10 grams of silver oxide. 2Ag2O → 4Ag + O2

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium