At what temperature is the following reaction feasible: CaCO3 -> CaO + CO2? Enthalpy data:
CaCO3: -1207 kJ/mol
CaO: -635 kJ/mol
CO2: -394 kJ/mol

Entropy data:
CaCO3: +93 J/K mol
CaO: +40 J/K mol
CO2:+214 J/K mol

A. 1.1 K
B. 17 K
C. 1105.6 K
D. 1780 K

Sulfuric acid (a component of acid rain) reacts with limestone (calcium carbonate) to produce calcium sulfate and carbon dioxide. this damages buildings and statues made of limestone. which solution of sulfuric acid will damage these structures more quickly? a. 0.001% b. 0.005% c. 0.010% d. 0.015%

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

Which of the following is most likely true about water in chemical solutions?