How is a mixture different from a pure substance? A. Pure substances are made up of mixtures.

B. A pure substance is heterogeneous.

C. A mixture is made of one substance.

D. Mixtures can be separated by physical means.

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