Which substance is most likely to form in a precipitation reaction? a. calcium nitrate b. copper(i) nitrate c. iron(i) chloride d. iron(ii) sulfide e. potassium sulfate

D is the answer on this one

The answer is: D. iron(II) sulfide.

Iron(II) sulfide is black, water-insoluble solid.

Iron (Fe) is metal and sulfur (S) is nonmetal.

Iron has positive charge 2+ (cations) and sulfur negative charge 2- (anion), which means iron lost two electrons and sulfur gain two electrons.

Balanced chemical reaction: Fe + S → FeS.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.