How many moles are in an iron nail that has a mass of 4.58 grams?

There are 0.81 moles in an iron nail having mass of 4.58 grams..

the answer would be a

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.