give a particulate-level explanation of why ice (solid water) is less dense than liquid water?

The solubility of KNO, is 155 g per 100.0 g of water at 75 °C and 38.0 g at 25 "C. What mass of KNO, will crystallize out of solution if exactly 225.0 g of its saturated solution at 75 °C is cooled to 25 °C? Round your answer to 3 significant digits. G

Some farmers use ammonia, NH3 as a fertilizer. This ammonia is stored in liquid form. Use the particulate perspective to show the transition from liquid ammonia to gaseous ammonia.

Describe the two characteristics of water that cause it to evaporate more slowly than other liquids. Use the paperclip button below to attach files. Student can enter max 3500 characters В I U Rain off and on e to search

B: If you need to melt a patch of ice on a winter's morning, which of the following solids would need the fewest number of moles to melt that ice? Group of answer choices rock salt (NaCl) glucose (a form of sugar, C6H12O6) MgCl2 AlCl3

A 1400g sample of stream water contains 12.2 ppm of mercury. What is the mass of Hg in the sample

Which statement best describes the kinetic molecular theory? A The kinetic molecular theory relates the properties of a state of mat- ter to the motion of its molecules. B C D The kinetic molecular theory relates the properties of a state of mat- ter to the mass of its molecules. The kinetic molecular theory relates the properties of a state of mat- ter to the size of its molecules. The kinetic molecular theory relates the properties of a state of mat- ter to the diameter of its molecules.

I PUIIILS MULTIPLE CHOICE Question 2 Examine the components of the solution below. Which term best describes the salt? Na* H2O CI Water (H20) No No NaCl Salt (Nacl)

The mass of the flask (in part A.1) before the sample is placed into the flask, is measured when the outside of the flask is wet. However , in part B 3., THE OUTSIDE OF THE FLASK IDS DRIED BEFORE ITS MASS IS MEASURED. The reported mass of the vapor in the flask will be less than the actual mass of the vapor. True or false

Which of the following is a method for separating a solid-liquid mixture?