4. Classroom Jeopardy 100 200 100 200 300 400 500 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 Chemical Reactions Charge it up BondingMisc. FINAL

5. Chemical Reactions 100 Physical or Chemical Change: Boiling Water What is a physical change? (change only in the state of matter)

6. Chemical Reactions 200 Physical or Chemical Change: Burning Wood What is chemical (burning anything is a chemical change)?

7. Chemical Reactions 300 The Law of Conservation of Matter/Mass: “Matter cannot be….” What is “Matter cannot be created nor destroyed, it only changes form”?

8. Chemical Reactions... 400 Two signs a chemical reaction took place when we added the reactants water and an antacid (alka-seltzer) in a test tube:. What are a color change and production of a gas?

9. Chemical Reactions 500 We add two substances together, each with a mass of 50 grams. One substance seems to disappear while another new substance is created. The mass of the result of this reaction will be… What is the mass we started with, 100 g?

10. Charge it Up 100 What side of the water molecule would be attracted to the positive side of another molecule What is the negative side?

11. Charge it Up 200. Water is a polar molecule because it has two different ends. What we call these ends… What is positive (+) and negative (-)?

12. Charge it Up 300 The conductivity meter will only light up (electricity will flow) when a compound has these... What is charges?

13. Charge it Up 400 Two objects, a test tube that is negatively charged and a knife is positively charged, both attract water. What we can tell about the water’s charges: What is that water must have both positive and negative charges?

14. Charge it Up 500 Why wax does not dissolve in water. What is wax is not polar but water is polar? (wax has no charged ends like water)

15. Bonding 1 00 When one atom wants electrons more than another, but is still willing to share them, this is the bond that results…(think Tug of War)… What is polar covalent? (like water)

16. Bonding 200 When one atom REALLY wants the electrons more than another and they are transferred over, this type of bond is the result… What is ionic? (like NaCl with its positive and negative ions)

17. Bonding 300 When electrons are shared equally, this type of bond is the result: What is NON-polar covalent? (no atom wants the electrons much more than the other

18. Bonding 400 Two atoms are bonding. Oxygen’s electronegativity is 3.4. Carbon’s electronegativity is 2.6. What type of bond these two atoms create? What is a polar covalent bond ? (the difference is 0.8, large enough to share electrons unequally)

19. Bonding 500 What job does Mrs. Radford’s husband do? What is an instructional coach (you can say “teacher”) at Kent Meridian?

20. Potpourri 100 If we added baking soda and vinegar in a bag, how the mass after the reaction compares to the mass before the reaction: What is the mass is the same before and after the reaction? (Law of Conservation of Mass)

21. Potpourri 200 Giving off or absorbing heat is a sign of this: What is a chemical reaction? (What were the other signs?)

22. DAILY DOUBLE Though wax does not dissolve in water due to its lack of charged ends, water is able to dissolve salt (like NaCl). This is how it works: What is that water has both positive and negative ends that will attract the positive and negative ions in salt?

23. Potpourri 400 When two different substances are added together and atoms are rearranged, this is the result: What is a different compound?

24. Potpourri 500 If two atoms are on very opposite sides of the periodic table, what their difference in electronegativities will be like: Bonus: what type of bond they will create: What is the difference in electronegativity will be large? Bonus: Ionic bond

25. 100. ?

26. 200..

27. 300 ?.

28. 400. ?

29. 500

30. FINAL JEOPARDY! A. ?