Molar mass for Be(NO3)2

133g/mol

Explanation:

To find the molar mass of Be(NO3)2, we must add the molar masses of all the individual elements present in the compound. This can be done by:

Molar Mass of Be(NO3)2 = 9 + 2[14 + (16x3)] = 9 + 2 [ 14 + 48]

= 9 + 2[62] = 9 + 124 = 133g/mol

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.