A 50.00-mL solution of 0.0626 M ethanolamine ( Kb = 3.2 × 10–5) is titrated with a 0.0327 M solution of hydrochloric acid as the titrant. What is the pH of the base solution after 20.97 mL of titrant have been added? ( Kw = 1.00 × 10–14)

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

Which description best characterizes the motion of particles in a solid?