Seating Arrangement 1 st Period

Transcription

1 Chemistry

2 8 7 Seating Arrangement 1 st Period 1. Loeffler-Dikmanas 2. Jackson 3. Goodwin 4. Gonzalez 5. Ortiz Lopez 2. Wynn 3. Jamerson 4. Ward 4 1. Guiterrez 2. Zahm 3. Barnes 4. Salazar 5 1. Wagner 2. Faulkner 3. Mason 4. Bankus Front Board Mr. Trujillo True-he-yo

3 2 1 Seating Arrangement 5 th Period 1 Heisner 2 Carbajal- Imay 3 Franksen 4 Jennings Toledo 2 Nepal 3 Mejia- Sonora 4 Goodwin 1 Smith 2 Huey 3 Anaya 4 Gavia- Moreno Front Board Mr. Trujillo True-he-yo Rowan 3 Brookins 4 Hug 1 Parker 2 Jackson 6 3 Wiggins 4 Ruiz 7 1 Beard 2 Carter 3 Beecher 4 Henderson 8

4 Seating Arrangement 6 th Period 1Mickles Vaca 6 2 Lopez 3 Quintanilla 4 Wanek Gallardo 2 Pedro 3 Keller 4 Anthony Front Board Mr. Trujillo True-he-yo De La Cruz 2 Harpster 3 Smith, DaiDreon 4 Jansen 3 1 2

5 8 7 1 Dimayuga Seating Arrangement 7 th Period 1 Hatten 2 Brown 3 Svec 4 Mendez 1 Rhoten 6 2 Pal Peter 3 Stevenson 4 Baines Front Board Mr. Trujillo True-he-yo 4 1 Lewis 2 Gonzalez 3 Garcia 4 Ivory Digilio 3 Mendieta 4 Macias 3 1 2

6 1 Barajas 2 Gutierrez 3 Drelicharz 4 Norvell 7 1 McCants 2 3 Kerr 4 Nash 8 Seating Arrangement 8 th Period 1 Taylor 2 Dudley 3 Perez Memije 3 Roberts 4 Fitzgerald 1 Mack 2 Rai 3 Collins 4 Straley Front Board Mr. Trujillo True-he-yo Adams 3 Issac 4 Theetouch 3 2 1

7 1. Quantitative measurements include: A) Numbers B) Descriptions C) Units D) Visual Representations E) Numbers and Units F) Descriptions and Visual Representations 2. Which is an example of only qualitative data: A) The warm solution was blue. B) The warm solution had a volume of ml. C) The warm, blue solution had a volume of ml. D) The temperature of the blue solution was found to be 56.4 o C and had a volume of ml. 3. True or False: Qualitative data include descriptions such as color. 9. is the scientific tool used in the lab to accurately measure volume of a liquid? A) ruler B) scale C) triple beam balance D) graduated cylinder E) beaker

8 1. Quantitative measurements include: A) Numbers B) Descriptions C) Units D) Visual Representations E) Numbers and Units F) Descriptions and Visual Representations 2. Which is an example of only qualitative data: A) The warm solution was blue. B) The warm solution had a volume of ml. C) The warm, blue solution had a volume of ml. D) The temperature of the blue solution was found to be 56.4 o C and had a volume of ml. 3. True or False: Qualitative data include descriptions such as color. 9. is the scientific tool used in the lab to accurately measure volume of a liquid? A) ruler B) scale C) triple beam balance D) graduated cylinder E) beaker

9 10. is the scientific tool used in the lab to accurately measure mass? A) ruler B) scale C) triple beam balance D) graduated cylinder E) beaker 11. The number of certain digits added to the uncertain digit equals: A) Number of significant digits B) density of a liquid C) Total number when counting measurements D) qualitative 12. Write the measurement 510,000,000 meters in scientific notation using 3 significant digits. 13. Write the measurement kg in scientific notation using 2 significant digits. 14. Write the real value of x 10-3 cm using 4 significant digits.

10 10. is the scientific tool used in the lab to accurately measure mass? A) ruler B) scale C) triple beam balance D) graduated cylinder E) beaker 11. The number of certain digits added to the uncertain digit equals: A) Number of significant digits B) density of a liquid C) Total number when counting measurements D) qualitative 12. Write the measurement 510,000,000 meters in scientific notation using 3 significant digits. 5.10x10 8 m 13. Write the measurement kg in scientific notation using 2 significant digits. 6.0x10-7 kg 14. Write the real value of x 10-3 cm using 4 significant digits cm

11 15. True or False: It is possible for a measurement to be precise when only one measurement is recorded. 16. True or False: It is possible for a measurement to be accurate when only one measurement is recorded. 17. Which group of measurements is the most precise? (Each group of measurements is for a different object.) A) 2 g, 3 g, 4 g B) 2.0 g, 3.0 g, 4.0 g C) 2.0 g, 2.5 g, 3.0 g D) 2.0 g, 3.0 g, 4.0 g, 5.0 g

12 15. True or False: It is possible for a measurement to be precise when only one measurement is recorded. 16. True or False: It is possible for a measurement to be accurate when only one measurement is recorded. 17. Which group of measurements is the most precise? (Each group of measurements is for a different object.) A) 2 g, 3 g, 4 g B) 2.0 g, 3.0 g, 4.0 g C) 2.0 g, 2.5 g, 3.0 g D) 2.0 g, 3.0 g, 4.0 g, 5.0 g

13 Use the targets to answer questions 18 and 19. The center of the target is the goal. 18. Which target shows the highest precision? 19. Which target shows high accuracy, but low precision?

14 Use the targets to answer questions 18 and 19. The center of the target is the goal. 18. Which target shows the highest precision? (B, has the stars closest together) 19. Which target shows high accuracy, but low precision? D (near center, but kind of far away from each other)

15 21. How many significant figures are there in the measurement kg? A) Two B) Three C) Four D) Five 22. How many significant figures are there in the measurement mg? A) Two B) Three C) Four D) Five 23. How many significant figures are there in the measurement grams? A) Two B) Three C) Four D) Five

16 21. How many significant figures are there in the measurement kg? A) Two B) Three C) Four D) Five 22. How many significant figures are there in the measurement mg? A) Two B) Three C) Four D) Five 23. How many significant figures are there in the measurement grams? A) Two B) Three C) Four D) Five

17 24. What is the measurement for letter A? 25. What is the measurement for letter B? 26. What is the measurement for letter C? (assume directly on the hash mark)

18 24. What is the measurement for letter A?.0014X cm (x is the estimated number) 25. What is the measurement for letter B?.5x cm (x is the estimated number) 26. What is the measurement for letter C? (assume directly on the hash mark) 1.40 cm

19 27).020 mm (mark as letter A) 28).145 mm (mark as letter B)

20 27).020 mm (mark as letter A) 28).145 mm (mark as letter B)

21 30. The closeness of a measurement to its true value is a measure of its. A) precision B) accuracy C) reproducibility D) usefulness 39/40. In COMPLETE sentences, describe (tell all about) precision and accuracy. Use examples to support your descriptions of each. (NOTE: This should be at least 2-3 sentences)

22 30. The closeness of a measurement to its true value is a measure of its. A) precision B) accuracy C) reproducibility D) usefulness 39/40. In COMPLETE sentences, describe (tell all about) precision and accuracy. Use examples to support your descriptions of each. (NOTE: This should be at least 2-3 sentences)

23

24

25 11. An alpha particle is essentially the nucleus of a atom. 12. Which type of radiation cannot be stopped by a piece of paper OR a small sheet of aluminum? 13. What is the nuclear symbol for a beta particle? 14. Which type of radiation has no mass, no charge, and is high in energy? A. Positron B. Gamma radiation C. Alpha radiation D. Beta radiation

26 11. An alpha particle is essentially the nucleus of a Helium atom. 12.Which type of radiation cannot be stopped by a piece of paper OR a small sheet of aluminum? Gamma 13. What is the nuclear symbol for a beta particle? 14. Which type of radiation has no mass, no charge, and is high in energy? A. Positron B. Gamma radiation C. Alpha radiation D. Beta radiation

27 15. The stability of isotopes depends on the stability of what subatomic particles? A. protons and electrons B. protons and neutrons C. neutrons and electrons D. quarks and leptons 16. A beta particle is essentially a(n). A. x-ray B. helium nucleus C. neutron D. electron 17. Which type of radioactive decay carries the most energy and is the most dangerous? A. Alpha radiation B. Neutron absorption C. Gamma radiation D. Beta radiation

28 15. The stability of isotopes depends on the stability of what subatomic particles? A. protons and electrons B. protons and neutrons C. neutrons and electrons D. quarks and leptons 16. A beta particle is essentially a(n). A. x-ray B. helium nucleus C. neutron D. electron 17. Which type of radioactive decay carries the most energy and is the most dangerous? A. Alpha radiation B. Neutron absorption C. Gamma radiation D. Beta radiation

29 18. Which of the following is made up of 2 protons and 2 neutrons? A. Alpha particle B. Beta particle C. Gamma ray D. Positron 19. Which reaction can only occur at very high temperatures? A. Fusion B. Neither fusion nor fission requires very high temperatures. C. Both fusion and fission. D. Fission

30 18. Which of the following is made up of 2 protons and 2 neutrons? A. Alpha particle B. Beta particle C. Gamma ray D. Positron 19. Which reaction can only occur at very high temperatures? A. Fusion B. Neither fusion nor fission requires very high temperatures. C. Both fusion and fission. D. Fission

31

32

33 28. Radon-222 has a half-life of 4 days. If a sample contains 28 grams, how many will remain after 12 days? 29. Iodine-125 has a half-life of 60 days. What percent of the original isotope remains after 120 days?

34 28. Radon-222 has a half-life of 4 days. If a sample contains 28 grams, how many will remain after 12 days? 12days / 4 days = 3 half lives 28 g (1 st half life) 14 g (second half life) 7 g (third half life) 3.5 g 29. Iodine-125 has a half-life of 60 days. What percent of the original isotope remains after 120 days? 120days / 60 days = 2 half lives 100% (first half life) 50% (second half life) 25%

35

36

37 33. In complete sentences, compare and contrast fusion and fission.

38

39

40 5. Substance X has uniform composition and can only be separated chemically. Substance X is: A) Element B) Homogeneous Mixture C) Heterogeneous mixture D) Compound 6. Two or more substances evenly distributed but with indefinite composition is called a(n) A) Element B) Homogeneous Mixture C) Heterogeneous mixture D) Compound 7. A pure substance made up of one type of atom is called a(n) A) Element B) Homogeneous Mixture C) Heterogeneous mixture D) Compound

41 5. Substance X has uniform composition and can only be separated chemically. Substance X is: A) Element B) Homogeneous Mixture C) Heterogeneous mixture D) Compound 6. Two or more substances evenly distributed but with indefinite composition is called a(n) A) Element B) Homogeneous Mixture C) Heterogeneous mixture D) Compound 7. A pure substance made up of one type of atom is called a(n) A) Element B) Homogeneous Mixture C) Heterogeneous mixture D) Compound

42 8. Margarine before being heated would be considered a(n): A) Element B) Homogeneous Mixture C) Heterogeneous mixture D) Compound 9. An example of a physical change is the A) Rusting of a nail B) Burning of a log C) Melting of ice D) Reaction of copper with nitric acid to produce a brown gas 10. In a chemical change: A) A phase change must occur. B) The process can be reversed. C) A phase change never occurs. D) A new substance is produced.

43 8. Margarine before being heated would be considered a(n): A) Element B) Homogeneous Mixture C) Heterogeneous mixture D) Compound 9. An example of a physical change is the A) Rusting of a nail B) Burning of a log C) Melting of ice D) Reaction of copper with nitric acid to produce a brown gas 10. In a chemical change: A) A phase change must occur. B) The process can be reversed. C) A phase change never occurs. D) A new substance is produced.

44 11. Which of the following is a chemical property? A) Ice melts at 0 C. B) Sodium is a soft, shiny metal C) Oxygen is a gas D) Fluorine is very reactive. 12. Which of the following properties describes a physical change in the state of matter: A) Water Freezing B) Fireworks Exploding C) Cutting your hair D) Nail Rusting 13. The cornstarch and water mixture did not have a definite shape. Which of the following states is characterized by having definite shape? A) solid B) liquid C) gas D) plasma

45 11. Which of the following is a chemical property? A) Ice melts at 0 C. B) Sodium is a soft, shiny metal C) Oxygen is a gas D) Fluorine is very reactive. 12. Which of the following properties describes a physical change in the state of matter: A) Water Freezing B) Fireworks Exploding C) Cutting your hair D) Nail Rusting 13. The cornstarch and water mixture did not have a definite shape. Which of the following states is characterized by having definite shape? A) solid B) liquid C) gas D) plasma

46 14. A quality or condition that can be observed or measured without changing the composition of the substance is called a: A) Chemical property B) Nuclear property C) Physical property D) Law of Composition 15. A solution is an example of a A) Pure substance B) Heterogeneous mixture C) Compound D) Homogeneous mixture 17. Which of the following properties is NOT a physical property: A) Hardness B) Density C) Color D) Explosive

47 14. A quality or condition that can be observed or measured without changing the composition of the substance is called a: A) Chemical property B) Nuclear property C) Physical property D) Law of Composition 15. A solution is an example of a A) Pure substance B) Heterogeneous mixture C) Compound D) Homogeneous mixture 17. Which of the following properties is NOT a physical property: A) Hardness B) Density C) Color D) Explosive

48 18. When a car burns gasoline and emits exhaust, this is a. A) chemical change B) physical property C) physical change D) biological process 19. How a substance will react with another substance is best described as a: A) Mental examination B) Phase change C) Physical property D) Chemical property 20. Which of the following processes does NOT involve a change in chemical properties: A) Boiling B) Rusting C) Burning D) Baking

49 18. When a car burns gasoline and emits exhaust, this is a. A) chemical change B) physical property C) physical change D) biological process 19. How a substance will react with another substance is best described as a: A) Mental examination B) Phase change C) Physical property D) Chemical property 20. Which of the following processes does NOT involve a change in chemical properties: A) Boiling B) Rusting C) Burning D) Baking

50 Classify each questions as an: A) Element B) Compound B) C) Homogeneous mixture D) Heterogeneous mixture 21. Orange juice with no pulp 22. Sugar water 23. Oxygen 24. Methane (CH 4 ) 25. Carbon monoxide (CO) 26. Ice Cream Sundae 27. Neon gas (Ne) 28. Sand in water

51 Classify each questions as an: A) Element B) Compound C) Homogeneous mixture D) Heterogeneous mixture C 21. Orange juice with no pulp C 22. Sugar water A 23. Oxygen B 24. Methane (CH 4 ) B 25. Carbon monoxide (CO) D 26. Ice Cream Sundae A 27. Neon gas (Ne) D 28. Sand in water

52 29-35: True or False 29. Pure substances are either elements or mixtures. 30. Liquids have a definite volume but indefinite shape. 31. Gases are very disorganized (chaotic) and are compressible. 32. Plasma is described as chaotic and has charged particles with empty space between them. 33. Gases have a definite volume and a definite shape. 34. When a firecracker explodes, mass is lost. 35. Solids are very organized (rigid), have high density and are incompressible.

53 29-35: True or False True 29. Pure substances are either elements or mixtures. True 30. Liquids have a definite volume but indefinite shape. True 31. Gases are very disorganized (chaotic) and are compressible. 32. Plasma is described as chaotic and has charged particles with empty space between them. False 33. Gases have a definite volume and a definite shape. False 34. When a firecracker explodes, mass is lost. True 35. Solids are very organized (rigid), have high density and are incompressible.

54 For questions 36-39, write P for physical property or write a C for chemical property. 36. Shape 37. Flammability 38. Solid State 39. Color

55 For questions 36-39, write P for physical property or write a C for chemical property. P 36. Shape C 37. Flammability P 38. Solid State P 39. Color

56 For questions 40-43, write P for physical change or write C for chemical change. 40. Rusting metal 41. Melting ice cream 42. Ripping a piece of paper 43. Baking cookies

57 For questions 40-43, write P for physical change or write C for chemical change. C 40. Rusting metal C 41. Melting ice cream P 42. Ripping a piece of paper C 43. Baking cookies

58 45. What distinguishes a pure substance from a mixture? A) Substances are compounds, and mixtures are elements. B) Mixtures can be separated physically, while compounds cannot. C) Mixtures have definite composition, and compounds have indefinite composition. D) All substances are solutions.

59 45. What distinguishes a pure substance from a mixture? A) Substances are compounds, and mixtures are elements. B) Mixtures can be separated physically, while compounds cannot. C) Mixtures have definite composition, and compounds have indefinite composition. D) All substances are solutions.

60 Summarize the classification of matter in a paragraph. Be sure to include all ideas from the concept map we used in class. Also, include how different samples could be separated.