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Hace 1 día · Their respective densities of 1.7, 2.7, and 4.5 g/cm 3 can be compared to those of the older structural metals, like iron at 7.9 and copper at 8.9 g/cm 3. An iron ball would thus weigh about as much as three aluminum balls of equal volume. A metal rod with a hot-worked eyelet. Hot-working exploits the capacity of metal to be plastically deformed.
Hace 1 día · Ammonia is an inorganic chemical compound of nitrogen and hydrogen with the formula N H 3.A stable binary hydride and the simplest pnictogen hydride, ammonia is a colourless gas with a distinctive pungent smell. Biologically, it is a common nitrogenous waste, and it contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to fertilisers.
