Homeowner buys 55.0 kilograms of propane. She wants to know the total mass of carbon dioxide that will be produced when all of the propane combines with oxygen. Which information is necessary to find the answer?

Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.