CaCO3 decomposes at 1200 0C to form CO2 gas and CaO. If 25 L of CO2 are collected at 1200 0C, what will the volume of this gas be after it cools to 250C?

219 grams of iron (iii) oxide reacts with excess carbon according to the reaction equation shown below. fe2o3 + c → fe + co2 after a scientist performs the chemical reaction they find the actual yield of iron to be 57.4 grams. calculate the percent yield of this chemical reaction.

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%

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?