How many moles of nitrogen are in 1.7 moles of CA(NO2)2?

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

Why do electrons further from the nucleus have more energy

What is the equation for calculating rf values