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We use a drinking straw, some water and universal indicator to show that breathing out creates acid.
We inflate a rubber glove using the gas produced during a neutralisation reaction.
We use vinegar to remove the shells from eggs without breaking them.
We use mercury(II) chloride solution and potassium iodide to demonstrate a precipitation reaction.
We investigate the conditions needed for rust to form.
We use three chemical solutions to create an oscillating reaction.