Obi wan hears the destruction of a planet and all of its people through 'the force'. these sounds are only in his head and are not carried through space, since space has no through which sound could transmit.

Sodium hydroxide (NaOH) is strong base because it fully dissociates in water to produce hydroxide ions.

Explanation:

... Because strong bases fully dissociate in water, they produce lots of hydroxide ions in solution, making the solution more basic. While weak bases produce fewer hydroxide ions, making the solution less basic.