Find the number of atoms in a copper rod with a length l of 9.85 cm and a radius r of 1.05 cm . the density of copper is 8.96 g/cm3 . (the volume of a cylinder is v

Reacting masses1 calcium carbonate breaks down on heating to produce calcium oxide and carbondioxide gas.caco3 + cao + co2a student heats 15 g of calcium carbonate strongly in a crucible.relative atomic masses (a): ca = 40, c = 12, o = 16.calculate the mass of calcium oxide produced by this reaction.(5 marks)