Identify the spectator ions in this reaction:
H+ + Br - + K+ + OH →K+ + Br + H20
Ht and K+
Br- and OH
Kt and Br
DONE

it should be p1 v1 = p2 v2

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.

pie chart because it is in percents ( % )

just did the assignment and the answer was #1 +2 n