answer: the percent composition by mass of an unknown compound with a molecular mass of 120.104 amu is 40.002% c, 6.7135% h, and 53.284% o.
the answer is a. volcanoes and earthquakes often occur near place boundaries. volcanoes are exit points for heat from the earth's core. and earthquakes are caused by the tectonic places colliding along another one. for example one tectonic plate would be slowly moving south, and another next to it could collide with the south-going plate while going north, and that is what causes earthquakes.
the position of equilibrium will shift to the left.
the general equation for the dissociation of a weak base is
b + h₂o ⇌ bh⁺ + oh⁻
according to le châtelier's principle, when a stress is applied to a system at equilibrium, the system will respond in a way that tends to relieve the stress.
if you apply a stress by adding more bh⁺ or oh⁻, the system will respond by moving in a direction that gets rid of the added ions.
the position of equilibrium will shift to the left, forming more of the undissociated base.