An unknown substance has the chemical formula: Fez(C204)3 A molecule of the unknown substance contains A 3 fluorine atoms, 2 calcium atoms, and 4 oxygen atoms. 2 iron atoms, 6 carbon atoms, and 12 oxygen atoms. , 2 iron atoms, 2 carbon atoms, and 12 osmium atoms. 1 fluorine atom, 2 europium atoms, 8 copper atoms .​

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 most common reason for matter changing its state?

What does an electron configuration for an atom relate to the atoms placement on the periodic table