9. There are two binary compounds of titanium and chlorine. One contains 31.04% mass titanium; the other contains 74.76% chlorine en masse. The ratio of chlorine in compound I/compound II is:    Answers:  a)4:3  b)3:2  c)3:4  d)2:3  e)1:2

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.