What does a cell use to eliminate a substance that is too large to leave by diffusion

Identify which properties could correspond to solids, plasmas, or both. maintain a unique shape. collide infrequently with other particles. have very high velocities. conduct electricity. protons. have a low temperature. has long-range order.

What is the value of keq for the reaction expressed in scientific notation?

What happens to isotopes that are unstable?