What is an extensive prperty of matter

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

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

Which of the following isotopes has the same number of neutrons as phosphorus-31?