How many moles of oxygen atoms are in 2 mol of CO2?
Answer and explanation
Correct answer: A. 4
- Step 1: Each CO2 has two oxygen atoms. Answer: 4. Why not the others: 2, 1 and 8 don't fit.
Practise more General, organic and biochemistry.
Free questions with an explanation for every one, and full timed Medical Entrance Exam (University of Iceland) mock tests.
More General, organic and biochemistry questions
- What is the electronic configuration of a neutral oxygen atom?
- Which type of bond is formed by the sharing of electron pairs?
- Which of the following molecules has a bent shape?
- What is the hybridisation of carbon in ethene?
- Which intermolecular force is responsible for the high boiling point of water?
- What is the pH of a neutral solution at 25 degrees Celsius?