What is the assumed minimum uncertainty in the volume delivered by a buret that is calculated as the difference in two buret readings?

Amount of liquid measured in l or lm

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.

Which samples do the atoms have the least kinetic energy