Pls help me with this

Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this

Which case is an atom least likely to bond with other atoms

Biology students used raw eggs in an experiment on tonicity and osmosis. the students put their eggs into vinegar to remove the shells. the vinegar was used to remove the shell from the raw egg. what other effect(s) did the vinegar have on the egg?