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Module 1: Detección de gases

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Chemistry - Testing for hydrogen

Testing for hydrogen

When a metal is added to an acid, hydrogen gas is one of the reaction
products.

How do you test for the presence of hydrogen gas?

Click to view the reaction between magnesium ribbon (metal) and HCl.

Hydrogen gas gives a poping sound when exposed to a flame. This is called
the "pop test".

A salt is also produced. When certain metals are added to an acid:

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