1. the hydrogen released by the reaction of 90 grams of nitricacid on aluminum, was used to make ammonia. How many grams ofammonia were formed ? 3. How many grams of copper(II) oxide can beformed by the oxygen liberated when 150 grams of mercuric oxide areddecomposed? 4. the iodine formed when 20 grams of chromic iodideare electrolyzed is reacted with sodium . how many moles of sodiumiodide are formed? 5. A sample MgO was first dissolved inhydrochloric acid to give a solution of MgCl2 and was thenconverted to a precipitate of pure, dry Mg2P2O7 weighting 12.00g.calculate the sample of MgO.
