A compound has the formula M3N where M is a metal element and N is nitrogen. It contains 0.673 g of N per gram of the metal M. determine the relative atomic mass of M and so it's identity

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.

може ли да зареждате повече информация, моля