Acup of water is put into a freezer and cools to the solid phase within an hour. the water remains at that temperature for six months. after six months, the cup is retrieved from the freezer. the cup is empty. what happened?

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.

What is the percentage of hydrogen in nitrogen trihydride

Which of these is a physical property