Describing Diffusion What happens when molecules diffuse across the cell membrane?

The molecules diffuse until all of them are outside the cell.

The molecules move from areas of low concentration to high concentration.

The molecules move from areas of high concentration to low concentration.

The molecules diffuse until all of them are inside the cell.

__can be defined as which velocity changes

Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.