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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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bioboy12 bioboy12
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4 months ago

What is ΔH°rxn for the decomposition of calcium carbonate to calcium oxide and carbon dioxide?

CaCO3(s) → CaO(s) + CO2(g)

Substance

ΔH°f(kJ/mol)

 CaCO3(s)

–1206.9

 CaO(s)

–635.6

 CO2(g)

–393.5



▸ –2236.0 kJ/mol

▸ –1449.0 kJ/mol

▸ –177.8 kJ/mol

▸ 177.8 kJ/mol

▸ 2236.0 kJ/mol
Textbook 
Chemistry: Atoms First

Chemistry: Atoms First


Edition: 4th
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DPhoenixDPhoenix
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