hoà tan 11,04 gam đồng (2) sunfat (CuSO4) vào nước thì thu dung dịch đồng (2) sunfat có nồng độ 32% .Tính nồng độ mol của dung dịch biết khối lượng riêng của dung dịch D= 1,15g/ml

Which statement accurately describes the relationship between air pressure, air density, or altitude? as altitude increases, pressure increases.as altitude increases, air density increases.air pressure and density are lowest at sea level.denser air exerts more pressure than less dense air.

How many grams of phosphorus are contained in 5.09 moles of phosphorus?

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