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The Sceptical Chymist" was published by Robert Boyle which distinguished between the fields of chemistry and alchemy. It included work on the atoms, molecules, etc.
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Henry Cavendish discovered hydrogen. He describes it as a colourless, odourless gas that burns and can form an explosive mixture when combined with air.
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Carl Wihelm Scheele and Joseph Pristly isolate oxygen.
Plan projects on a visual timeline
Map milestones, phases, deadlines, and key events in one place so the sequence is easier to see and share. Timetoast is a timeline maker for work, school, research, and stories.