Fórmula empírica e fórmulas moleculares

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  1 June - 7 June
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  8 June - 14 June
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  15 June - 21 June
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  22 June - 28 June
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  29 June - 5 July
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  13 July - 19 July
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  20 July - 26 July
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  27 July - 2 August
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  3 August - 9 August