Oxidation unit test Please help ASAP

Use the reaction to answer the question
C3Hg + 502 - 3C02 + 4H20 + energy
Which type of reaction is shown?
(1 point)
O decomposition
o displacement
O combination
Ocombustion

(If you have the correct answers for the whole test you will have an amazing week starting now)

If a substance is not at its melting or boiling point, as the heat content of a sample of matter increases, its temperature increases the number of intermolecular bonds decreases the space between particles increases the particles move faster

The image shows a process that releases nuclear energy which statement best identifies the process shown the process must be fusion because energy is released the process must be fusion because of have your nucleus formed a smaller nuclei the process must be fission because a large nucleus breaks into smaller nuclei the process must be fission because neutrons are formed

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms