Review the information in the data table. What does this information tell you about the rate of decay reactions relative to the concentration of oxygen?
Object
Location
Concentration of Decay time
oxygen in the air
Very low
5,000 years
Leather pouch
High Alps
Leather purse
Florida
High
30 years
O A. Reactions occur at the same rate regardless of the concentration
of reactants.
B. Reactions occur more slowly when there is less oxygen in the air.
C. More information is needed to compare the rates of decay.
O
D. Reactions occur more slowly when there is more oxygen in the air.

chemical energy is stored in the chemical bonds of atoms and molecules. it can only be seen when it is released in a chemical reaction. when chemical energy is released, the substance from which the energy came is often changed into an entirely different substance.

this chemical reaction releases energy in the form of light and heat. chemical energy is the potential energy stored in the arrangement of atoms within molecules. breaking chemical bonds requires energy, while forming new chemical bonds releases energy.

the atp molecule can store energy in the form of a high energy phosphate bond joining the terminal phosphate group to the rest of the molecule. in this form,energy can be stored at one location, then moved from one part of the cell to another, where it can be released to drive other biochemical reactions.