Fertilisers supply the essential elements, nitrogen, phosphorus and potassium for plant growth. A bag of fertiliser contains 500 g of ammonium sulfate, (NH4)2SO4, and 500 g of potassium nitrate, KNO3.
Calculate the percentage by mass of nitrogen in the bag of fertiliser.

One of the cell membrane's functions is to protect the cell keep wastes in the cell create new cells keep light out of the cell

How many moles of sulfur dioxide are produced when 4.38 moles of oxygen completely react with iron (iv) sulfide

Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons