Limestone (CaCO3) is the second most abundant mineral on Earth after SiO2. For many
Chapter 22, Problem 22.86(choose chapter or problem)
Limestone (CaCO3) is the second most abundant mineral on Earth after SiO2. For many uses, it is first decomposed thermally to quicklime (CaO). MgO is prepared similarly from MgCO3. (a) At what T is each decomposition spontaneous? (b) Quicklime reacts with SiO2 to form a slag (CaSiO3), a byproduct of steelmaking. In 2010, the total steelmaking capacity of the U.S. steel industry was 2,236,000 tons per week, but only 84% of this capacity was utilized. If 50. kg of slag is produced per ton of steel, what mass (in kg) of limestone was used to make slag in 2010?
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