Explain how do I make an observation and calculate data using involving metric units

Which of the following is not a true statement about dwarf planets? a the kuiper belt contains comets, asteroids, and dwarf planets. b ceres is a dwarf planet located in the kuiper belt. c the largest known dwarf planet in the solar system is named eris.

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

What happens to the temperature of a substance when the average kinetic energy of its particles increases?