What do electrons Do in ionic bond? Do they transfer from metals to no metals or nonmetal to metals?

electrons get transfered from metals to non metals in the formation of ionic bond.

metals have the tendency to lose electrons whereas non metals tend to stabilize by gaining electrons.

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.