elements occur in a number of isotopic forms. in this problem, you will learn about the notation used to distinguish different isotopes.

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.

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

What are transitions between a liquid and a solid called? identify which way they are transitioning