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Chromium - Periodic Table of Videos

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The team at periodicvideos has created a TED-Ed lesson for every element of the periodic table. Chromium is element number 24 and widely used to protect metal compounds.

In the “chromium trioxide” Periodic Video, CrO3, which contains Cr(6+), is an oxidizer which reacts violently with ethanol. What is the green product we can see when the fire alarm sounds? What is the oxidation state of chromium in this product?

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