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O3


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O3
   is   
Ozone
Ground-level ozone is an air pollutant with harmful effects on the respiratory systems of animals and humans. Ozone in the upper atmosphere filters potentially damaging ultraviolet light from reaching the Earth's surface.
PbCO3
   is   
Lead Carbonate
It is prepared industrially from lead(II) acetate and carbon dioxide. It occurs naturally as the mineral cerussite
HNO3
   is   
Nitric Acid
A highly corrosive and toxic strong acid. Common uses include as a cleaning agent and in explosives (e.g dynamite), and as one of the key components of Nitroglycerin.
NaHCO3
   is   
Sodium Bicarbonate
Baking Soda. Used as a rising agent in baking. Also known as bread soda, cooking soda, bicarbonate of soda.
Al2O3
   is   
Aluminium Oxide
Corundum is the most common naturally-occurring crystalline form of aluminium oxide. Much less-common rubies and sapphires are gem-quality forms of corundum with their characteristic colors due to trace impurities in the corundum structure.
K2CO3
   is   
Potassium Carbonate
Aka: Pearl Ash and Potash. Potassium carbonate is used in the production of soap and glass.
NaHCO3
   is   
Baking Soda
Used as a rising agent in baking. Also known as Sodium Bicarbonate, bread soda, cooking soda, bicarbonate of soda.
(NH4)2CO3
   is   
Ammonium Carbonate
Aka: Sal Volatile. When crushed is used as smelling salts.
CaCO3
   is   
Calcium Carbonate
Aka: Limestone; calcite; aragonite; chalk and marble. A common substance found in rock in all parts of the world, and is the main component of shells of marine organisms, snails, pearls, and eggshells. Calcium carbonate is the active ingredient in agricultural lime, and is usually the principal cause of hard water. It is commonly used medicinally as a calcium supplement or as an antacid






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