Question 22
You will need: safety glasses, test tubes, a test tube rack, water, hydrochloric acid, small pieces of a selection of metals such as magnesium, iron, copper, zinc.
Safety
Wear safety glasses. Remember to pay attention to hazard warning labels when you use chemicals.
Additional safety guidance: Work only with teacher supervision and the small quantities and dilute acid provided. Point tubes away from people, avoid overfilling and never seal reacting tubes. Only test a small gas sample as directed by your teacher, away from the gas generator.
Explain how you tested for hydrogen.
Safety
Wear safety glasses. Remember to pay attention to hazard warning labels when you use chemicals.
Additional safety guidance: Work only with teacher supervision and the small quantities and dilute acid provided. Point tubes away from people, avoid overfilling and never seal reacting tubes. Only test a small gas sample as directed by your teacher, away from the gas generator.
Explain how you tested for hydrogen.
