Physical properties of nitrogen - Nitrogen is a colourless, odourless, neutral gas. Sparingly soluble in water. It is unreactive., Uses of nitrogen - Used as a coolant, in food packaging as it is unreactive. Used in the manufacture of ammonia for fertilizer., Test for ammonia: method - Dip a glass rod in concentrated hydrochloric acid and expose it to the gas. , Test for ammonia: positive result - White fumes of ammonium chloride will be observed., Composition of Atmospheric Gases - Nitrogen: ~78% Oxygen: ~21% Carbon Dioxide: ~0.03–0.04% Argon, Noble Gases, Water Vapor also present., Preparation of Hydrogen - Prepared by reacting a metal (like zinc) with hydrochloric acid., Properties of Hydrogen - Hydrogen is a colorless, odorless gas that is less dense than air. It is highly flammable., Uses of hydrogen:  - Protential for use as a clean fuel. Used in rockets and weather balloons., Uses of Oxygen - Used in medicine to support breathing. Also used for welding., Preparation of Oxygen - Produced by the catalytic decomposition of hydrogen peroxide., Physical Properties of Oxygen  - Colourless and odourless. About the same density as air. Slightly soluble in water., Reactions of oxygen - Combustion and respiration, Metal oxide - Magnesium oxide white. Copper oxide Black. Iron oxide black. All basic., Non metal oxides - CO2 and SO2 colourless gases. All non-metal oxides acidic., Preparation of CO2  - Produced by the reaction of calcium carbonate (e.g., limestone) with hydrochloric acid., Uses of CO2  - Used in fizzy drinks, fire extinguishers, dry ice , Reaction of CO2 with Water - Dissolves in water to form carbonic acid, which is a weak acid., Reaction of CO2 with Calcium Hydroxide (Limewater) - Carbon dioxide turns limewater milky due to the formation of insoluble calcium carbonate (CaCO3).,

CCEA C2 Gas chemistry

tarafından
Yerleştir

Skor Tablosu

Hafıza Kartları açık uçlu bir şablondur. Bir lider panosu için skor oluşturmaz.

Görsel stil

Seçenekler

Şablonu değiştir

Otomatik olarak kaydedilen geri yüklensin mi: ?