Examlex
In the 1860s,a Swiss chemist,Friedrich Miescher,isolated an acidic substance from cell nuclei.What was the name of this substance,and what was its significance?
Sodium Chloride
A chemical compound known as table salt, widely used in food seasoning and preservation, consisting of sodium and chloride ions.
Common Compounds
Chemical substances made up of atoms of two or more different elements, which are widely found or used in daily life.
Acute Poisoning
A sudden and severe exposure to a toxic substance causing harmful effects.
Multiple Exposure
A photography technique that combines two or more exposures into a single image to produce surrealistic effects.
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