A 9.56 g sample of CuS is found to contain 6.35 g of copper. What is the percent by mass of the copper and sulfur in this compound? (to the .1 %)

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.

2b2t

explanation:

2b2t