Which statement best describes the process of photosynthesis A. it is the process of producing fruits. B. it is the process of relesing carbon dioxide C. it is the process of converting energy and producing and producing food D. it is the process of absorbing water and releasing nitrogen.

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.