18 points Which identifies an oxidation-reduction reaction? a double replacement reaction

a neutralization reaction

a reaction in which oxidation numbers change

a reaction in which no electrons are transferred

a reaction in which oxidation numbers change

Explanation:

here you go happy to help

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.

i think   the answer is c hope i'm right