The answer you are looking for is compression.
The balanced reaction is: 2Mo+3O2>2MoO3
Answer:
Planetary orbits are all nearly circular , comet orbits are highly excentric . ... This means that planets stay more or less at the same distance from the sun, while comets travel as far out as beyond Neptune, and can travel as far in as Mercury.
C. Decomposition
Since one reactant turns (decomposes) into two products, it is a decomposition reaction