Testing for hydrogen gas

Aim: To show that hydrogen gas is produced when a metal reacts with acid.

Method:

1. Light the Bunsen burner
2. Add your sample of metal to your test tube, add 2mL of acid. 
3. Carefully invert the boiling tube above the test tube containing the metal and acid
4. Hold the test tubes together fr a few minutes, allowing time for the inverted boiling tube to full with gas.  
5. When you thing the tube is full , your lab 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 

Results : 

It fizzed when we added the acid and metal together, and when we put the flaming splint into the test tube, it made a squeaking sound. 

Discussion: 

Well when we started and put the acid and metal together it started fizzing up because of the chemical reaction of metal and acid.  And when we had captured all of the hydrogen in the top that the metal, acid reaction made, and then brought fire to it, it made a screeching sound and that cause of that was the Hydrogen reacting with the oxygen around it when we brought heat into the mix. 

Conclusion: 

When we did it the experiment worked and it did exactly what we expected it to do. And overall it was a really good experiment and it was a great time.