Jordan places four objects into a tank of water, as shown below.

Classify each statement about effective nuclear charge, zeff, as true or false.

You may expect bonds between two atoms which each have n covalent lonic metallic hydrogen

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.