Um pacote de iogurte tem 500g de um produto. a quanto equivale essa massa em quilogramas?

Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.

Classify this reaction: 2al+n2-> aln.

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp