I can try.
Whats the question
Answer: It’s most likely Mayonnaise and mustard.
Explanation: It’s definitely mayonnaise because it’s not possible to see the different substances and for mustard it depends on what type. Hope this helps. Good luck :)
A catalyst lowers the activation energy needed to start a reaction
Answer:
Chocolate melts and becomes really sticky once heated.
Add-on:
hope that helped at all.