Does anybody have the answers to the 05.06 Percent Yield Lab Report for FVLA?

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.

a:

by the combination of an unlimited number of elements

6.4 cm (max) - 25 cm (min)

what is the question?