Concrete is prepared by roasting the mineral calcium carbonate, CaCO3​, to drive off CO2​ and produce calcium oxide, CaO

[answerhappygod]

Concrete Is Prepared By Roasting The Mineral Calcium Carbonate Caco3 To Drive Off Co2 And Produce Calcium Oxide Cao 1 (18.51 KiB) Viewed 35 times

Concrete is prepared by roasting the mineral calcium carbonate, CaCO3​, to drive off CO2​ and produce calcium oxide, CaO. The chemical equation for this reaction is: CaCO3​=mCaO+CO2​ The Grand Coulee Dam on the Columbia River in Washington State was built using a volume of concrete of approximately 1.2×107 m3. If concrete has a density of 2.4×103 kg/m3, and assuming concrete is 100% by volume CaO, how much ​CO2​ was released producing the concrete used to build the dam? Hint: This problem is only tricky in that you have to pay attention to the units (remember to convert kg to g, for instance).