Question 18
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.
Part 1: Reactions with water
1. Place a small piece of each of the metals into a different test tube.
2. Take one tube at a time and add water, so that the test tube is half full.
3. Record your observations and findings in a table.
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.
Part 1: Reactions with water
1. Place a small piece of each of the metals into a different test tube.
2. Take one tube at a time and add water, so that the test tube is half full.
3. Record your observations and findings in a table.
