1. The Energy In Sugar!
Recall that energy is stored in the bonds of molecules
Sugars have a LOT of stored energy
“Table sugar” is sucrose: glucose + fructose
Heating up the potassium cholorate:
The excess oxygen helps combust the
sugar in the gummy bear, which breaks
the bonds in the molecules releasing
The energy!

2. Demo Time!
Sugar (a carbohydrate) is dehydrated with concentrated sulfuric acid. Since a carbohydrate was once considered just hydrated carbon, if you remove the water, carbon would be left over. The acid rips the water out of the sugar and the heat generated by this reaction causes the water to turn to steam. A black mass of carbon is produced.
C12H22O11 (sugar) + H2SO4 (sulfuric acid) → 12 C (carbon) + 11 H2O (water) + mixture water and acid
Analysis:
In this reaction, water is being removed. What is this type of reaction called?
_____________________________
2) Since water is being removed, what do you
think the black column is?
______________________________
3) Acid removes the oxygen and hydrogen atoms
from the carbon in the sugar. Why does this
create energy? _________________________
4) Why is steam produced? _______________________________________