An isotope of oxygen has an atomic number of 8 and an atomic weight of 18. how many neutrons does it have

For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with ph. if the solubility does change, pick the ph at which you'd expect the highest solubility. you'll find ksp data in the aleks data tab. compounds does solubility change with ph

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

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?