What is the common name of solid carbon dioxide

At room temperature what happens to the average kinetic energy of the molecules of a solid, liquid, and a gas

Remember to use the proper number of significant figures and leading zeros in all calculations.gelatin has a density of 1.27 g/cm³. if you have a blob of gelatin dessert that fills a 2.0 liter bottle, what is its mass? 2540 g2500 g3.9 x 10-43.937x 10-4

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.