Answer:

Explanation:
B.

BALANCED. 7C, 16H, and 22O on each side of equation.
A.

NOT BALANCED. 7C on left and 6C on right.
C.

NOT BALANCED. 16H on left and 10H on right.
D.

NOT BALANCED. 7C on left and 14C on right.
Answer:
No 1 is fission
while no 2 is fusion
Fission is splitting on nucleus while fusion is forming heavier nucleus with nuclei
The second one.
Remember, temperature is the AVERAGE kinetic energy. So, looking for highest average kinetic energy means looking for highest temperature, which is 55.
Note: the amount of the substance does not determine the average kinetic energy.