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Dry Ice - The Magnesium Sandwich

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Summary

Using two blocks of frozen CO2, Professor Hal Sosabowski demonstrates how magnesium is so reactive that it can cause carbon dioxide to act as an oxidant, in an idea to use in Key Stage 3/4 chemistry lessons.

Having drilled a hole in one of the blocks, Hal fills it with magnesium, lights the magnesium with a blowtorch, and quickly places the second block on top.

The result is a beautiful intense glow inside the blocks. This experiment is one of the rare occasions in which carbon dioxide actually promotes a fire rather than putting it out.

Professor Hal Sosabowski is a committed chemistry educator who shows how to safely recreate his inspirational demonstrations, which are both educational and spectacular.

Published : Feb 2011

03 mins

Series

Demonstrating Chemistry

Roles

Secondary Teacher

Subjects

Secondary Science

Chemistry

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