1. How is heat (energy) transferred in Conduction? Please provide an example. 2. How is heat (energy) transferred in Convection? Please provide an example.
3. How is heat (energy) transferred in Radiation? Please provide an example.

Sorry, I wasn't exactly sure about what subject this is.

Conduction is when heat is transferred through direct touching (if you have a hot plate and you touch the surface, your hand will feel hot after)
convection is the process of heat rising and hitting something else (when your toast is in the toaster and you put your hand over it and can feel the heat, because the heat is rising from the toaster to your hand)
and radiation is the process of heat traveling through waves (the sun radiated heat to the earths surface through solar waves, heating the earths surface and everything on it)
hope this helped :)

So  if  the sum of the enthalpies of the reactants is greater than the products, the  reaction  will be  exothermic.  if  the products side has a larger enthalpy, the  reaction  is  endothermic. you may wonder why  endothermic reactions, which soak up energy or enthalpy from the environment, even happen