Alchemy was an ancient branch of natural philosophy, a philosophical and protoscientific tradition practised throughout Europe, Africa, and Asia, originating in Greco-Roman Egypt in the first few centuries. Alchemists attempted to purify, mature, and perfect certain materials.

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    Chemistry_support_3hours 6 jours left
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    Topic I need help see attached material and bid Alcohol blood % determination, procedure for physically examining a Cannabis sample submitted to a forensic laboratory different challenges and procedures required for the forensic examination and chemical analysis of bulk and trace explosives. how you would identify the presence of petrol and what you would expect to see in the results following c...

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    I want the solve of question,

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    Chemistry Knowledge Expansion 2 jours left
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    I have some topics I would like more information help understanding regarding general chemistry in the following areas: Atom, molecules, atomic mass , chemical reactions, molarity, reactions in aqueous solutions, energy / thermochemistry, gases and their properties and periodic trends

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    pharm chemistry 18 heures left
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    Hi there .. i am looking for some help with my pharm chemistry .. please bid if you can help me

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