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Structure 1.1.2
The kinetic molecular theory is a model to explain physical properties of matter (solids, liquids and gases) and changes of state. Distinguish the different states of matter. Use state symbols (s, , g and aq) in chemical equations.
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Structure 1.1.1
Elements are the primary constituents of matter, which cannot be chemically broken down into simpler substances. Compounds consist of atoms of different elements chemically bonded together in a fixed ratio. Mixtures contain more than one element or compound in no fixed ratio, which are not chemically bonded and so can be separated by physical methods.…
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