Kamusta everyone, today in science we were doing an experiment about metal and how it reacts to acid.
Testing for Hydrogen Gas
Aim: To show that hydrogen gas is produces when a metal reacts with acid.
Equipment: A test tube, Bunsen burner, wooden splint, a bottle of acid, a piece of metal, safety glasses.
Method: 1. Light your Bunsen burner.
2. Add your sample of metal to your test tube. Add 2 ml of acid.
3. Carefully invert the boiling tube above the test tube containing the metal and acid.
4. Hold the test tubes together for a few minutes, allowing time for the inverted boiling tube to
fill with gas.
5. When you think the tube is full, your partner should light a wooden splint.
6. Carefully, but quickly, tilt the boiling tube full of gas upwards and insert the burning splint into the mouth of the test tube.
Observations: The metal and the acid reacted, it got hot and it bubbled. When I aim the fire near the mouth of the test tube, the fire and the oxygen reacted and made a pop sound with a little fire within below a seconds.
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