One of the researchers mentions that he is looking for "affiliation cues" in the video recordings of the experiment. how would you describe

what these affiliation cues indicate?

a. the participant is using non-verbal methods of communication with her friend.

b. all of these

c. the participant is interested and engaged in the conversation.

d. the participant feels positively about what's being said.

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.

these nuts

dynamic equilibrium is the answer.