Chemistry/Oxygen Preparation

SCIENCE 10 LAB EXPERIMENT THE PREPARATION OF OXYGEN FROM HYDROGEN PEROXIDE AND POTASSIUM IODIDE

This experiment is designed to show you how to prepare oxygen gas and observe some of its properties.

In your conclusion:
A. Summarize all the properties of oxygen gas that you observed (appearance, smell, effect on a glowing splint, ability to dissolve in water). B. How could you use the results of this experiment to help decide if an unknown gas was or was not oxygen?

QUESTIONS:
You may have noticed some things that puzzled you or made you wonder during this experiment. List as many questions as you can regarding this experiment. (Note: You do NOT have to answer the questions; just ask them. You will be marked on the quantity and quality of your questions.)