Using Chemistry

1. Using Chemistry KS3 Unit 9h – Using Chemistry

2. Q1. Name the process where new chemical products form from chemical reactants. KS3 Unit 9h – Using Chemistry

3. A1. Reaction KS3 Unit 9h – Using Chemistry

4. Q2. Give another word for burning something in air. KS3 Unit 9h – Using Chemistry

5. A2. Combustion KS3 Unit 9h – Using Chemistry

6. Q3. What do we call a rapid expansion of hot gases as a chemical reaction takes place. KS3 Unit 9h – Using Chemistry

7. A3. Explosion KS3 Unit 9h – Using Chemistry

8. Q4. What do we call a chemical reaction with oxygen. KS3 Unit 9h – Using Chemistry

9. A4. Oxidation KS3 Unit 9h – Using Chemistry

10. Q5. What do we call the process where we produce palatable food by application of heat. KS3 Unit 9h – Using Chemistry

11. A5. Cooking KS3 Unit 9h – Using Chemistry

12. Q6. What do you call the unwanted reaction between a metal and the atmosphere or water. KS3 Unit 9h – Using Chemistry

13. A6. Corrosion KS3 Unit 9h – Using Chemistry

14. Q7. What do we call a very long molecule formed from a string of identical chemical building blocks? Often a type of plastic. KS3 Unit 9h – Using Chemistry

15. A7. Polymer KS3 Unit 9h – Using Chemistry

16. Q8. What is a chemical building block used to form plastics called? KS3 Unit 9h – Using Chemistry

17. A8. A monomer KS3 Unit 9h – Using Chemistry

18. Q9. Name the process of breaking long chain hydrocarbon molecules into more useful short chain molecules. KS3 Unit 9h – Using Chemistry

19. A9. Cracking KS3 Unit 9h – Using Chemistry

20. Q10. What is the general name for a polymer like polythene, polypropylene, nylon and polystyrene. KS3 Unit 9h – Using Chemistry

21. A10. Plastic KS3 Unit 9h – Using Chemistry

22. Q11. Name a fossil fuel raw material used to make most plastics. KS3 Unit 9h – Using Chemistry

23. A11. Oil KS3 Unit 9h – Using Chemistry

24. Q12. What is a portion of crude oil with a particular boiling point called? KS3 Unit 9h – Using Chemistry

25. A12. A fraction KS3 Unit 9h – Using Chemistry

26. Q13. What is the technique used to separate liquids with different boiling points called? KS3 Unit 9h – Using Chemistry

27. A13. Distillation KS3 Unit 9h – Using Chemistry

28. Q14. Name the fossil fuel used in jet aircraft, also called kerosene. KS3 Unit 9h – Using Chemistry

29. A14. Paraffin KS3 Unit 9h – Using Chemistry

30. Q15. What do we call a substance that increases the rate of a chemical reaction but that is not used up itself. KS3 Unit 9h – Using Chemistry

31. A15. A catalyst KS3 Unit 9h – Using Chemistry

32. Q16. What do we call an atom with an excess positive or negative electric charge. KS3 Unit 9h – Using Chemistry

33. A16. An ion KS3 Unit 9h – Using Chemistry

34. Q17. What do we call a negative ion that travels towards the positive anode? KS3 Unit 9h – Using Chemistry

35. A17. An anion KS3 Unit 9h – Using Chemistry

36. Q18. What do we call a positive ion that travels towards the negative cathode. KS3 Unit 9h – Using Chemistry

37. A18. A cation KS3 Unit 9h – Using Chemistry

38. Q19. What do we call a tiny particle, much lighter than an atom, that carries a negative electric charge? KS3 Unit 9h – Using Chemistry

39. A19. An electron KS3 Unit 9h – Using Chemistry

40. Well Done!Now check your score KS3 Unit 9h – Using Chemistry