Which is a correct comparison between the modern quantum model and John Dalton’s model of the atom? A)The modern model is not as widely accepted by scientists as Dalton’s model.

B)The modern model states that atoms of all elements are identical, whereas Dalton’s model does not.

C)The modern model recognizes particles in the atom, whereas Dalton’s model does not.

D)The modern model does not explain emission spectra, whereas Dalton’s model does.

The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .

You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices

Which of the following compounds would be expected to have the strongest ionic bonds? a)the compound that has b)the largest ions with the greatest charge c)the compound that has d)the largest ions with the least charge the compound that has the smallest ions with the greatest charge the compound that has the smallest ions with the least charge