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The western desert of Egypt was a major source ...

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An alum (/ˈæləm/) is a type of chemical compoun...

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Electrodes are an essential part of any battery...

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Urea, also called carbamide (because it is a di...

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Urea, also called carbamide (because it is a di...

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Cysteine (symbol Cys or C;[5] /ˈsɪstɪiːn/)[6] i...

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Acetone (2-propanone or dimethyl ketone) is an ...

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In common usage, salt is a mineral composed pri...

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