Mini-Quiz: Oxygen

1. What is the reaction of combining sulfur and oxygen called?

   OxidationThat is correct. You understand about oxygen. SulfurizingSorry, not correct. Try another button. Sulfur dioxidizingGood try, but not right. Select another answer.

2. What is the chemical formula for common sand?

   SiC2 (silicon carbonide)Sorry, not correct. Try another button. CO2 (carbon dioxide)Oops! Wrong answer. Re-read the question and try again. SiO2 (silicon dioxide)Correct. You are becoming a Champion!

3. Can electrolysis of water create oxygen in the laboratory?

   No, because it is extremely dangerous and requires commercial-grade power suppliesGood try, but not right. Select another answer. Yes, it is a common experiment that students can performThat is correct. You understand about oxygen. It is uncertain, because no one has ever tried itOops! Wrong answer. Re-read the question and try again.

Pick an answer to see instant feedback. Re-read the lesson if you miss one.