2. What conclusions can you draw about the identities of the gases (CO2) produced in each chemical reaction? Write an evidence-based claim.

0.09 moles of sodium sulfate in 12 ml of solution

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

In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j