Ms. Turk Science Unit 2 6th - PowerPoint PPT Presentation

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Ms. Turk Science Unit 2 6th

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  1. It is Halloween. You are entering a haunted house.Get the right answer and you can continue.Make one mistakeand you are in trouble.

  2. What is the atomic number for silicon? A 14.0 B 14.1 C 28.1D 42.1

  3. You are correct. You may continue. The atomic number is always listed on top.

  4. What is the atomic mass of boron?a. 10.81b. 5c. 3

  5. You are correct. You may continue. The atomic mass is always listed on the bottom.

  6. What is the atomic mass of oxygen?a. 10.81b. 16.00c. 8

  7. You are correct. You may continue. The atomic number is always on the bottom.

  8. What is the atomic mass of calcium?a. 10.81b. 16.00c. 40.08d. 8

  9. You are correct. You may continue. The atomic number is always on the bottom.

  10. a. NaCl b. Na and Cl c. None Which are the reactants?Na + Cl NaCl

  11. You are correct. You may continue.

  12. a. NaCl b. Na c. Cl Which is the product?Na + Cl  NaCl

  13. You are correct. You may continue.

  14. a. water b. vinegar c. Baking soda Which has the physical property of a clear color and a sour taste?

  15. You are correct. You may continue.

  16. a. water b. vinegar c. baking soda Which has the physical property of a white color and odorless?

  17. You are correct. You may continue.

  18. a. water b. Carbon dioxide c. Baking soda Which has the physical property of a gas with colorless and sour taste?

  19. You are correct. You may continue.

  20. a. water b. vinegar c. Baking soda Which have the physical property of colorless and odorless?

  21. You are correct. You may continue.

  22. Which will react the fastest when mixed with water?A A whole Alka-Seltzer tabletB An Alka-Seltzer tablet broken into four pieces.C An Alka-Seltzer tablet broken in half.D An Alka-Seltzer crushed into a powder.

  23. You are correct. You may continue.

  24. Cody has a piece of Aluminum, which he mixes with acid to make a reaction. How can he speed up the reaction?A Put the Aluminum in the acid in one whole piece.B Fold the Aluminum in half before he puts it in the acid.C Ball the Aluminum up into a giant ball before he puts it in the acid.D Cut the Aluminum into tiny pieces before he puts it in the acid.

  25. You are correct. You may continue.

  26. A scientist has two samples of the same chemical: one sample is a solid block, and the other sample is a powder. The scientist puts the solid block in a beaker of water and observes a reaction. What would most likely happen if the scientist placed the powdered sample into a different beaker of water? A No reaction would occur. B A completely different reaction would occur. C The same reaction would occur but at a faster rate.D The same reaction would occur but at a slower rate.

  27. You are correct. You may continue.

  28. Which one is an element on the chart?a. thiaminb. niacinc. Vitamin B6 d. magnesium

  29. You are correct. You may continue.

  30. Which one is an element on the chart?a. riboflavinb. niacinc. vitamin A d. potassium

  31. You are correct. You may continue.

  32. Which one is an element on the chart?a. sugarb. proteinc. sodium d. folate

  33. You are correct. You may continue.

  34. Which one is an element on the chart?a. zincb. riboflavinc. vitamin C d. folate

  35. You are correct. You may continue.

  36. Which one is an element on the chart?a. fatb. thiaminc. calciumd. vitamin A

  37. You are correct. You may continue.

  38. Which one is an element on the chart?a. potassiumb. cholesterolc. vitamin Cd. protein

  39. You are correct. You may continue.

  40. Bryson burns a piece of paper, and observes that the reaction gives off heat and light. What kind of reaction is taking place? A Exothermic, because heat is released.B Endothermic, because heat is released.C Exothermic, because heat is absorbed.D Endothermic, because heat is absorbed.

  41. You are correct. You may continue.

  42. Antoinette mixes two chemicals together in a giant beaker, and observes thatthe reaction gets colder as it sucks in heat from the room. What kind of reaction is this?A Exothermic, because heat is released.B Endothermic, because heat is released.C Exothermic, because heat is absorbed.D Endothermic, because heat is absorbed.

  43. You are correct. You may continue.

  44. Terrance puts a thermometer in a jar. It reads 20ºC. Then, he adds 2 chemicals to the jar. The thermometer changes to read 25ºC as the chemical reaction occurs.a. What kind of reaction is this?A Exothermic, because heat is released.B Endothermic, because heat is released.C Exothermic, because heat is absorbed.D Endothermic, because heat is absorbed.

  45. You are correct. You may continue.

  46. Dejaputs a thermometer into a jar. It reads 30ºC. Then, she adds two chemicals to the jar. The thermometer changes to read 19ºC as the chemical reaction occurs.A.Exothermic, because heat is released.B Endothermic, because heat is released.C Exothermic, because heat is absorbed.D Endothermic, because heat is absorbed.

  47. You are correct. You may continue.

  48. Which is a physical property?a. Blue Colorb. Reacts with acid to form a gasc. Reacts with base to form water

  49. You are correct. You may continue.

  50. Which is a chemical property?a. Blue Colorb. Reacts with acid to form a gasc. Sour tastesd. Melting pointe. Density