The author posted a question in Leisure, Entertainment
And can you guess this riddle? 123421421 What's in the world that's eating iron, steel, and rocks? and got a better answer
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time?
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time
time
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Chuck.
Chuck.
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annihilation
annihilation
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Robin Bobin Barabek
Robin Bobin Barabek
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Hydrofluoric acid[1] Hydrofluoric acid, hydrofluoric acid, hydrofluoric acid is an aqueous solution of hydrogen fluoride HF. Industry comes in the form of 40 more often, as well as 50 and 72 solutions. The name "hydrofluoric acid" comes from hydrofluoric spar, from which hydrogen fluoride is obtained. The salts of hydrofluoric acid are called fluorides; all water-soluble fluorides are toxic.
Hydrofluoric acid[1] Hydrofluoric acid, hydrofluoric acid, hydrofluoric acid is an aqueous solution of hydrogen fluoride HF. Industry comes in the form of 40 more often, as well as 50 and 72 solutions. The name "hydrofluoric acid" comes from hydrofluoric spar, from which hydrogen fluoride is obtained. The salts of hydrofluoric acid are called fluorides; all water-soluble fluorides are toxic.