Calculate the number of moles of Cl atoms in 1.81×1024 formula units of magnesium chloride, MgCl2.

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

What produces wave a)sound b) heats c)transfer of energy d)vibrations

What is the molecular weight of copper