in one analysiss 1.09 x 10^13 molecules of ozone were found in 1.00ml of air how many ozone moles are these

Design techniques and materials that reduce the negative environmental impact of a structure are referred to as

How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123

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