Barium nitrate and sodium sulfate solutions can be used to precipitate barium sulfate. How many grams of sodium sulfate should a chemist use to completely react with 75.0 grams of barium nitrate? How many
grams of precipitate will be formed?

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.

Adirect relationship can be represented by: a curve a pie chart

Which method would be best to separate a mixture of sand and gravel