Answer:
Candy bar is a pure substance
Explanation:
C
A
N
D
Y
B
R
I
S
P
U
E
T
To be exact, candy bars are a mixtures, because of the substances/stuff mixed into the mixture isn't really compounded on some level :3
:3
C. The number after it is between 5 and 9.
D. Bosina and Herzegovina
Chile is the answer I think
Away from the ridge, where the sea floor is older and has more time to accumulate; also much thickest near continents