Which way of dissolving changes the chemical identity of the solute?
hint: think about attractions between the particles of each solute.

select all that apply.

a) dispersion
b) ionization
c) disintegration
d) dissociation

ionization, dissociation

Explanation:

A solute may be dissolved in a solvent because it ionizes in solution or because it dissociates in solution. For instance, when iron metal is dissolved in acid, it is oxidized to FeIII. The chemical identity of the solute has been changed. Similarly, many substances dissociate in solution hence changing the original chemical identity of the solute.

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.