Which postulate of Dalton's theory is violated by the following observations: 59.95 of one sample of titanium dioxide is titanium; 60.10 of a different sample of titanium dioxide is titanium?
a) In a given compound, the numbers of atoms of each type (and thus also the percentage) always have the same ratio.
b) Atoms can be rearranged, combined, or separated in chemical reactions.
c) All atoms of a specific element are identical in mass, size, and other properties. However, atoms of different elements exhibit different properties and vary in mass and size.
d) Atoms can neither be created nor destroyed. Furthermore, atoms cannot be divided into smaller particles. All matter is made up of tiny, indivisible particles called atoms.