How energy is neither created nor destroyed.
Understanding the law of conservation of mass.
The periodic trend of ionization energy.
How to graphically depict the variation in the energy of substances involved in reactions as they progress from reactants to products.
Understanding Gibbs Free Energy.
An explanation of photoelectric effect and how to determine how much energy electrons have.
How to use stoichiometry to work with chemical equations.
Understanding the concept of enthalpy.
How radioactive substances undergo fission to reach more stable states.
How radioactive substances undergo fusion to reach more stable states.
The phase at which matter has the highest kinetic energy.
Understanding how electrical energy produces chemical changes.