Based on the given van der Waals constants, arrange these hypothetical gases in order of decreasing strength of intermolecular forces. Assume that the gases have similar molar masses. Rank from strongest to weakest intermolecular attraction. To rank items as equivalent, overlap them.

Gas a (L2?atm/mol2) b (L/mol)
Q 5.46 0.0305
D 4.16 0.0373
M 2.25 0.0428
R 1.34 0.0322

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.

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?

Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness