Description of experiment
Below follows a plain text transcript of the selected experiment.
Needed compounds:
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hydrochloric acid : HCl
magnesium : Mg
Class:
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elem=Mg
redox
Summary:
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Magnesium dissolves in acid very easily.
Description:
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Add a piece of magnesium to dilute HCl (10% by weight): The magnesium quickly
dissolves. There is a very vigorous evelution of gas and the liquid becomes
quite hot.
Keep the test tube stoppered for a while, while the gas evolves and then keep
a small flame in front of the just opened test tube: A loud whistling noise
is produced, while the hydrogen/air mixture burns.