Chamber crystals

Materials: Xed EtOH extract of red rose, SO1, fuming. HN03, H-3, filmstrip SD-4. Procedure: Deeply dye the filmstrip with the red rose extract. Projec...
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Tested Overhead Proiection Series Compiled by HUBERT N. ALYEA

Princeton University

19. GROUP VI. THE SULFUR FAMILY

D. Sulfur Dioxide (continued) Dem. 571-Reducing

with SOzin G- 1

Experiment developed blj Crosby U . Rogers. T o show: Reducing action of SO2 on I