An oxide is a molecule that has 2 Oxygen atoms in its empirical formula. Stoichiometry would be used as the ratio of Oxygen to Dioxides is 3:2. So 52.29 would be multiplied by 3/2. The answer is 78.435 Mol of CO2 are formed.
I think that type of rock is call Igneous rock because the igneous rock is molten rock from volcanoes.
Natural: Land mounds, Rivers
Human made: Country borders, cities
They use it because it's standerize and evidence vase