Please help me with number 6 7 8 plis

[tex]\huge\mathfrak\blue{answer}[/tex]
Answer for the 6th question is
c. Water boiling
Answer for the 7th question is
a. Chemical change
Answer for the 8th question is
b. A glass cup falls from the counter and shatters on the ground
(mark me brainliest please :))
[tex]\large\sf\blue{thank \: you}[/tex]