The Grass Doctor

chemistry help..?

please help me finish this.. best answer ten points thank you SOO much! =]] 1: What is pure Nitrogen obtained from? It is obtained from ammonium nitrite, NH4NO2 It is obtained from air. It is obtained from Earth It is obtained from the Fungus. 2: The brown gas produced when copper reacts witt concentrated nitric acid is N2O NO NO2 N2O3 3: The atomic weight of nitrogen is 14 28 16 36 4: A retort is generally used in preparing carbonic acid nitric acid hypochlorous acid sulfuric acid 5: The gas obtained when copper unites with dilute nitric acid is hydrogen nitric oxide nitrogen nitrogen peroxide 6: A gas that is less dense than air is H2S NH3 NO2 O2 7: Unstable compounds used as explosives usually con�tain the element chlorine nitrogen phosphorus sulfur 8: Nitric acid may be prepared by the reaction be�tween H2SO4 and NaNO3 NaNO3 and KOH H2S and NH3 H2SO4 and KNO3 9: A lightning flash through the air may result in the formation of ammonia carbon dioxide nitric oxide water 10: A fertilizer that may explode is ammonium nitrate ammonium sulfate potassium chloride urea 11: The ratio of the volumes of nitrogen and ammonia in the equation N2+3H2 ---> 2NH3 1:2 2:2 1:3 2:8 12: Ammonia is a compound while ammonium is (hint: answer is in lesson 17.3) a base a radical an atom an element 13: Nitrogen dioxide is produced by reacting________ and __________. Copper and HCl Nitric Acid and concentrated Br Copper and concentrated Nitric Acid Concentrated Copper and metallic Cu 14: The Ostwald Process is used to produce aluminum ammonia chlorine nitric acid 15: Nitric oxide has the formula NO NO2 N2O N2O4 16: To test for an ammonium salt heat it with Calcium NH4OH Oxygen FeSO4 and H2SO4 17: The catalyst used in the Haber Process is iron oxide platinum manganese dioxide vanadium pentoxide 18: The presence of water vapor in the air may be demonstrated by the use of phosphorus limewater sodium hydroxide magnesium nitride

Public Comments

1. thats a lotta questions
2. This forum is not intended to do your homework for you.