Why can evaporation be used to separate a mixture? check all that apply.

a: one or more components has a lower boiling point than the desired component.

b: the desired component has a different density than the other components.

c: the mixture is a solution that contains a substance that will crystallize out.

d: the desired component has the smallest particles in the mixture.

e: the desired component has a higher boiling point than the other components.

f: heat causes some of the components to change into a gas.

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.

What determines the average kinetic energy of the particles in a gas? a. the number of collisions b. the number of particles c. the size of the particles d. the temperature

Answer explain why it is not possible to deduce a complete order of reactivity.