Which of the following is the correct dissociation equation for NaCl in solution?
0 1 NaCl(aq) 1 Na+1(aq) + 1 Cl-1(aq)
1 NaCl → 1 Na+1 + 1 CI-1
2 NaCl(aq) 3 Na+4(aq) + 2 CI-1(aq)

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

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.