Chemistry Essay Example | Topics and Well Written Essays - 750 words

Chemistry - Essay Example One expects them to be the same and hence have similar properties which is not the case for example Ethyl alcohol has higher boiling point, the have different solubilities in water. ii) Burning wood leaves an ash that is only a small fraction of the mass of the original wood but according to Dalton, all matters is composed of extremely small indivisible and indestructible particles called atoms and chemicals changes are merely rearrangements of these atoms to form new compounds, the total number of atoms (and mass) remaining constant throughout. iv) According to Dalton, when elements combine to form compounds, they do so in proportion, which for any particular compound, are simple and fixed. Thus since the atoms any element have always the same mass, it follows that the proportion by mass of various elements in the compound are also fixed, which is not the case in liH since one sample is 89.4% of li by mass whereas the other is 74.9% li by