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Reversible and irreversible changes.

This week 5 Thames have been investigating chemical reactions. We wanted to find out whether bicarbonate of soda (a solid) had different reactions with different liquids. We were quite surprised by some of the results – We were not expecting the creation of a gas when bicarbonate of soda was mixed with lemon juice! We then went on to discover whether the changes were reversible or irreversible.

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