How to balance this equation in chemistry

If the root word engage means “to connect with something,” what does the word disengage mean in the following sentence? he disengaged the gears by stepping on the clutch pedal.a.added more engine powerb.activated a connection to the pedalc.stalled the engined.released a connection to the pedal

Which step in naming unsaturated hydrocarbons is used for alkenes but not alkynes

Find the number of moles of argon in 364g of argon.