_g of potassium reacts with 16 g of oxygen to produce 94 g of potassium oxide

i just learnt this recently but i need to look through my notes again

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.