Using your answer from the previous question and any color changes in the video, which part of the salt visually responds to the flame test?

This question is incomplete

Explanation:

This question is incomplete however, the answer is straight forward.

A salt is a compound formed as a result of the neutralization reaction between an acid and a base. The salt formed comprises of the metal from the base and the non-metal from the acid, as shown below

HCl + NaOH ⇒ NaCl + H₂O

Hence, we can say a salt has a metallic and non-metallic component.

Flame test experiment is generally used to detect the presence of metal ions by "releasing" several metallic colour change. Thus, the part of the salt that must have visually responded to the flame test is the metallic component.

elements make up everything, and they combine to make compounds.

the answer is c