In an unconformity between two layers of rock, how is the upper layer usually described? much younger than the lower layer the same age as the lower layer a little older than the lower layer much older than the lower layer correct answer is much younger than the lower layer

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