yes though the gases in you stomach are mainly for digestion they also heat things up as any external gases.
it is where you say chocolate is equal to me (human) T.H ROCKS
Heat will flow from the boiling water into the ice cube.
The heat will flow from the boiling water to the block of ice.
This creates a double broiler effect. If you were to put the chocolate over the direct heat it would quickly "burn" the chocolate before it was all melted. By putting it over boiling water you get a slower more controlled heat to the chocolate, making it easier to get smooth creamy chocolate.
Boiling water has a lower latent heat than steam. Steam is the transition from liquid to gas for boiling water. If by boiling water you mean liquid water at the temperature of 100 degrees Celsius then yes, steam has a higher latent heat.
Yes, the boiling water has more heat than the match flame.
A cup of boiling water since it has higher temperature. Note that heat transfer depends more on the temperature.
convection
boiling it to intence heat
heat
Boiling occurs when heat is supplied. Water is converted into vapor.
heat produces energy which causes the corn to spin in boiling water.