Cho 6,5g muối sắt clorua tác dụng với dung dịch AgNO3 dư thu được 17,22g kết tủa. Công thức phân tử của muối sắt clorua là công thức nào? Biết hiệu suất phản ứng đạt 100%

hey your not cool]      

the correct answer is option d

explanation:

i was wrong its d because they dont use cm when calculating square roots

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.

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.