Freaky Hand

This video from the Royal Society of Chemistry (RSC), aimed at primary teachers, demonstrates an experiment which may be used when learning about irreversible reactions.

Vinegar is poured into a jar and a plastic glove containing bicarbonate of soda is fitted onto the top. When the bicarbonate of soda is tipped into the vinegar the gas carbon dioxide is produced. As gases move around freely, the glove inflates as the carbon dioxide is produced and moves around the container and glove.

This demonstration could be carried out in class with children providing explanations for what they have observed.

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