like all equilibrium constants, kw varies somewhat with temperature. given that kw is 4.95 × 10−13 at some temperature, what is the ph of a neutral aqueous solution at that temperature?

What are the three stages of volcanic activity? a. active, magma, lava c. extinct, eruption, explosive b. eruption, quiet, explosive d. active, dormant, extinct

Afish fossil is found in a rock. a foot bone and tooth are found in an older layer of the same rock. what can scientists learn from the rock? a) the area changed from land to water. b) the area changed from water to land. c) the area has always been land. d) the area was once an ocean.

Emmanuel has had a sharps exposure at work and has reported the incident, his employer has offered him an immediate confidential medical evaluation and follow-up care. what can he expect from the exam?