Chemical energy is energy stored in the bonds of chemical compounds, like atoms and molecules. This energy is released when a chemical reaction takes place. Usually, once chemical energy has been released from a substance, that substance is transformed into a completely new substance.
The first one will be A. The second one is B.
Natural abundance of oxygen I think
Answer:
Data is a specific measurement of a variable – it is the value you record in your data sheet.
Explanation:
i dont know if that helps but i hope it does :)