2Mg + 02 - 2Mgo a) If 6 moles of Mg reacts with 4 moles of O2, How many moles of MgO are formed?

b) If the actual yield of MgO is 100 g. What is the percentage yield of Mgo?

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.

level 4 to level 2 : ))