-By————————- the amount of solute ;we change the solution from diluted to concentrated can someone please someone help me?

answer; economic order quantity;

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.

the dissolution of polymer can be thermodynamically described in 2 steps.

you need to have a picture of the atom that way we can answer it