Topic:
*Give one difference chemical energy and heat energy.
*What cause the energy changes during a chemical reaction?
*Define Endothermic and Exothermic reactions.
*Define Enthalpy (H)or Heat content, How Enthalpy changes with change in energy?
*What is the difference between chemical energetic and thermodynamics?
*Who firstly used the word "Energy"?
What do you understand about "System" and "Surrounding" ?
