Phenyl Magnesium bromide is used as a Grimaldi reagent I organic synthesis. Determine its empirical and molecular formula I'd its molar mass is 181.313 g/Mol and it contains 39.7458% C, 2.77956% H, 13.4050% MG, and 44.0697% Br.​

14,16 18 reacts with group

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.