Task 3 of 12 · Chemistry · Class 7
O2 element or compound?
Task
Does O2 represent a simple substance or a chemical? Explain.
Your answer
Write your answer, check the solution, then rate it against the criteria.
Task 3 of 12 · Chemistry · Class 7
Task
Does O2 represent a simple substance or a chemical? Explain.
Your answer
Write your answer, check the solution, then rate it against the criteria.