Calcium carbonate, CaCO3\text{CaCO}_3CaCO3, decomposes when heated.
Calcium oxide, CaO\text{CaO}CaO, is made. Carbon dioxide is a waste product.
CaCO3→CaO+CO2 \text{CaCO}_3 \rightarrow \text{CaO} + \text{CO}_2 CaCO3→CaO+CO2What is the atom economy of the reaction to produce calcium oxide?
Relative formula mass (MrM_rMr): CaCO3=100.1\text{CaCO}_3 = 100.1CaCO3=100.1, CaO=56.1\text{CaO} = 56.1CaO=56.1, CO2=44.0\text{CO}_2 = 44.0CO2=44.0
44.0%44.0\%44.0%
56.0%56.0\%56.0%
78.4%78.4\%78.4%
178.4%178.4\%178.4%