I really l need help with this question

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.

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?