1. Why does incomplete combustion occur?

Question 1 of 22

2. A pupil has tried to write down various ways of representing ethane using: molecular formula, displayed formula, general formula, empirical formula and stuctural formula. However she has missed one out. Which one?

Question 2 of 22

3. Why can nitrogen react with oxygen in a car engine?

Question 3 of 22

4. State the general formula of alkanes

Question 4 of 22

5. What is crude oil?

Question 5 of 22

6. Name this molecule

Question 6 of 22

7. What is the molecular formula for methane?

Question 7 of 22

8. What is a substance called if it, when burned, releases heat energy?

Question 8 of 22

9. How does sulfur dioxide form in car engines?

Question 9 of 22

10. What is the name of the process in which crude oil is separated into its various components?

Question 10 of 22

11. Recall all the possible products of the incomplete combustion of alkanes

Question 11 of 22

12. Why is the boiling point of a larger molecule higher than that of a smaller molecule?

Question 12 of 22

13. Name the greenhouse gas released from burning hydrocabons

Question 13 of 22

14. Explain why carbon dioxide gas, CO₂, is a gas at room temperature

Question 14 of 22

15. Recall a use of kerosene

Question 15 of 22

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

Question 16 of 22

17. Write the chemical equation for sulfur dioxide dissolving in water to form acid rain

Question 17 of 22

18. Balance the following equation: WO₃ + H₂ → W + H₂O

Question 18 of 22

19. Why are alkanes classified as saturated hydrocarbons?

Question 19 of 22

20. Explain the term hydrocarbon

Question 20 of 22

21. Explain the term homologous series

Question 21 of 22

22. What is meant by the term viscosity?

Question 22 of 22


 

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