You have a new box of breakfast cereal that contains cereal bits and fluffy marshmallows bits. your brother shakes the box and then pours himself a bowl of marshmallows bits, leaving you with a bowl of only cereal bits. what form of separation technique did he undertake? what property does this separation technique depend on?

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.

my dad did alot of meth and ace cheeks