Which of the following is soluble in water?
a. Ammonium carbonate
b. Lead (II) iodide
c. Silver bromide
d. Strontium hydroxide

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.

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

What is the mass of 4 molecules of co2