1. Explain why methane gas, CH₄, is a gas at room temperature

Question 1 of 22

2. What is the molecular formula for methane?

Question 2 of 22

3. Why is carbon dioxide, CO₂ harmful to the environment?

Question 3 of 22

4. Why does incomplete combustion occur?

Question 4 of 22

5. Do larger molecules have higher or lower boiling points than smaller molecules?

Question 5 of 22

6. Describe the problems caused by acid rain

Question 6 of 22

7. Explain the term hydrocarbon

Question 7 of 22

8. What is a general formula?

Question 8 of 22

9. Recall the names of the main fractions obtained from crude oil, in order of lowest boiling point first

Question 9 of 22

10. Write a chemical equation for the complete combustion of propane

Question 10 of 22

11. What is crude oil?

Question 11 of 22

12. Explain the term homologous series

Question 12 of 22

13. Explain how crude oil is separated into fractions

Question 13 of 22

14. What is a fuel?

Question 14 of 22

15. What do each of the following state symbols represent: (s), (l), (g), (aq)

Question 15 of 22

16. What is produced when nitrogen reacts with oxygen?

Question 16 of 22

17. State the names and molecular formulae of the first 5 alkanes

Question 17 of 22

18. What is meant by the term viscosity?

Question 18 of 22

19. How does sulfur dioxide form in car engines?

Question 19 of 22

20. Why are alkanes classified as saturated hydrocarbons?

Question 20 of 22

21. Name this molecule

Question 21 of 22

22. A student names this molecule 2-ethylpentane. Which of these statements is true about the student's naming of the molecule?

Question 22 of 22


 

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