Which statement is true? a
Metal atoms form either anions or cations, while
nonmetal atoms only form anions.
b
Metal atoms tend to form cations, while nonmetal
atoms tend to form anions.
С
Metal atoms and nonmetal atoms can form either
anions or cations.
d
Metal atoms tend to form anions, while nonmetal
atoms tens to form cations.

For the following, determine the type of reaction and then give products.

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.

How many liters of oxygen gas, at standard temperature and pressure, will react with 35.8 grams of iron metal? 4 fe (s) + 3 o₂ (g) → 2 fe₂o₃ (s)