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Welcome, young supporters of chemistry circle on the page "Himikus - Tsikavikus." Our group is designed for curious explorers of the world, those who do not consider boring chemistry who are interested in the unusual properties of all known and unknown substances! schaumstoffhaus
In the study detergents Nicholas offered its scale, measure the effectiveness of detergent height of foam formed. So, scales reveal the secret schaumstoffhaus circle: a tube pour 5 ml of water of different quality, 5 ml of 10% solution of detergent and 5 times vigorously shaken. The height of the foam formed, measure ruler or other materials schaumstoffhaus at hand with divisions. Unit pinoutvoryuvannya efficiency detergent - glycol / flask. We hope Scale Circle gain the international recognition because it is so funny!
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The temperature in the trunk of lightning reaches 20 000 C, while nitrogen reacts with oxygen, leading to the formation of about 2 million tons of nitric acid daily (or 700 million tons per year) World production of nitric acid is about 30 million tons per year
A solution of iodine
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