The top documents of hubert-n
Syringe gas generators
213 views
Conc. H2SO4 + Sugar (2)
218 views
Qualitative analysis for iron. Dem. 651
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Ammonium cyanate from urea. Dem. 661
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Formic acid swelling proteins. Dem. 667
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By electrolysis of MX
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Phenol-formaldehyde plastic. Dem. 672
215 views
Oxygen from KMnO4. Dem. 645
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Electrical devices
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Boron and silicon. B. Silicon
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Devices—1965 kit
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Tops teacher (daylight) projector
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TOPS projector devices
212 views