How many moles of NaCl, if mixed with excess Pb2+ ions in solution, would be needed to form 12.8 g of PbCl2?

How can you write e method for the experiment of separating sand from water by filtration process? 1-materials 2-steps 3-conclusion also the same for the separating process of water and salt by filtration or distillation. quick because i need to finish my hw

Use the de broglie's wave equation to find the wavelength of an electron moving at 7.3 × 106 m/s. show your work. note: h = plank's constant (6.62607 x 10-34 j s)

What is the source of continuous heat and energy that we receive from the sun