WARNING: Wear gloves when using hydrochloric acid. This is very dangerous, strong and corrosive acid. In this video, I will show you the reactions of hydrochloric acid and metals. A lot of hydrogen gas is produced so be careful.
YOU WILL NEED: - hydrochloric acid (I´m using 33% concentraton)
- a 100ml container
- a gloves
- zinc metal
- copper metal
- aluminum foil
- an iron nail
Let´s get started. First is the zinc metal. You can see, very reactive in hydrochloric acid. Next, the copper. It doesn´t seems it´s reacting, but when you have copper oxide, hydrochloric acid dissolves the copper oxides and solution turns blue. But nothing else happens. Now the aluminum foil. Very reactive, but firstly, as you can see, it´s very slow due the protective layer on the alimunum foil. When the layer is dissolved, aluminum starts reacting. The last is an iron nail. At the beggining you can see some bubbles of H2, but that is all. Thank you for whatching ! The next video is coming soon ! Please subscribe, rate and comment.

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