The ionization potential of an electron in an atom or mole- cule is the energy required to remove the electron. Calculate the ionization potential for a 1s electron in He . Give your answer in units of eV and kJ mol-1.

Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?

Which scenario is most similar to the type of collision that gas particles have according to kinetic molecular theory

Citric acid has a ph between 1 and 3.  it is considered to be aa. weak acidb. weak basec. strong based. strong acid