calcium carbonate, caco3(s), decomposes upon heating to give cao(s) and co2(g). a sample of caco3 is decomposed and the carbon dioxide is collected in a 250-ml flask. after decomposition is complete, the gas has a pressure of 1.3 atm at a temperature of 31 degrees celsius. how many moles of co2 gas were generated?

Which of the following ideas did greek philosopher democritus contribute to the atomic theory? a. each object is made up of one atom, which varies in size from very small to very large. b. matter is composed of only one kind of particle, which can be easily destroyed. c. every element has a specific type of atom, which remains the same size in all forms of matter. d. all matter is composed of small particles, which combine to make larger objects.