Is the volcanic "Ring of Fire" possibly a result of the collision that resulted in formation of the moon?

It is possible, albeit indirectly. Although the Ring of Fire region is almost certainly too large to be an impact crater, it is much more likely that the impact not only infused the Earth's core with molten iron but also fractured the Earth's crust, creating tectonic plates. The movement of those tectonic plates is what creates the Ring of Fire, so theoretically, it is possible that the two phenomena are related.

No The ring of fire is due to Plate tectonics. A series of subduction zones surrounds the Pacific Ocean. These subduction zones are where oceanic crust sinks beneath other tectonic plates. As the oceanic crust melts, the rock melts in the earth's mantle and rises in the surface to from chains of volcanoes. Heat escaping the earth's interior is the driving force for plate tectonics. Convection currents in the earth's mantle move the crustal plates on the surface

Current theory strongly supports the moon having formed after the Earth had a grazing impact. So the moon is mostly made of debris from Earth. The continents of the Earth formed after the impact. The Ring of Fire is a product of the motions of the continents and oceanic plates since then

Not really. It is not even sure that the Pacific is really the point where the moon was created - Earth was literally destroyed again when the moon formed, down to the core.

The pacific ring of fire is more likely just the result of the supercontinent cycle and the motion of the continental plates away from each other, making them all subdue the pacific plates and have many volcanoes around these subduction zones.

http://en.wikipedia.org/wiki/Supercontinent_cycle

no. the volcanic ring of fire is a result of the earths thin crust floating over a molten core. the earth and the moon have never collided

Nope, but the tide is caused by the moon.

No!