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Chemistry Jeopardy Chapter One Final Jeopardy

Chemistry Jeopardy Chapter One Final Jeopardy. Scientific Method 200. What is the tentative answer to a question (educated guess) called hypothesis. 400 Scientific Method. What is the variable? How many variables may any experiment have? The thing you are testing 1.

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Chemistry Jeopardy Chapter One Final Jeopardy

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  1. Chemistry JeopardyChapter OneFinal Jeopardy

  2. Scientific Method200 • What is the tentative answer to a question (educated guess) called • hypothesis

  3. 400 Scientific Method • What is the variable? How many variables may any experiment have? • The thing you are testing • 1

  4. 600 Scientific Method • What does the experimental control do? • Behaves in a predictable way

  5. 800 Scientific Method • Can theories change? • Yes, as technology advances so does science’s ability to study the universe around us.

  6. 1000 Scientific Method • Explain the statement “The scientific method is orderly and systematic” . • It follows specific steps. You must be able to observe, form a hypothesis, test, examine data, conclude and retest

  7. 200 Metric Units • What is the basic unit for length in SI? • Meter (m)

  8. 400 Metric Units • What is the basic unit for time in SI? • Second (s)

  9. 600 Metric Units • What is the basic unit for mass in SI? • Kilogram (kg)

  10. 800 Metric Units • What volume unit is 1 cm3 equal to? • 1 ml

  11. 1000 Metric Units • What type of units are density, area and volume? • derived

  12. 200 D.A. • Convert 23.3 Hm to m using D.A. • 23.3Hm x (100 m) = 2330 m (1 Hm)

  13. 400 D.A.. • Convert 678.25 pm to um using D.A. • 678.25 pm x ( 1 um) = 0.00067825 um (1,000,000 pm)

  14. 600 D.A. • Convert 30,458.24 mg to kg • 30,458.24 mg x ( 1kg) = 0.03045824 kg (1,000,0000 mg)

  15. 800 D.A. • What is a conversion factor? • Two equal amounts of “stuff” with different units. It is used to convert between units

  16. 1000 D.A. • How many cm3 are in 1 liter? • 1000cm3

  17. 200 Sig Figs • How many sig figs in 230.000m? • six

  18. 400 Sig Figs • How many sig figs in 20g? • One

  19. 600 Sig Figs • Solve 23.45 cm x 45.25 cm • 1061 cm2

  20. 800 Sig Figs • 120 g / 50.3 ml? • 2.4 g/ml

  21. 1000 Sig Figs • 124.2567 g – 100.23 g • 24.03 g

  22. 200 Density • What is the density of 35.2 ml unknown with a mass of 50.23 g? • 1.43 g/ml

  23. 400 Density • What is the mass of a 15.45 cm3 solid with a density of 3.75 g/ml? • 57.9 g

  24. 600 Density • What is the density of a 3.24 cm x 2.45 cm x 1.2 cm with a mass of 15.6 g? • 1.6 g/cm3

  25. 800 Density • A 20.0 ml flask masses at 5.45 g when empty and 30.85 g when full. What is the density of the unknown solution? • 1.27 g/ml

  26. 1000 Density • Why would knowing an unknowns density be useful? Why must the temperature be stated when documenting density? • Density is unique to the substance and can help identify it. • Temperature influences density. High the temp, the lower the density (molecules move faster and are farther apart)

  27. 200 Mixed Bag • Which digit is the estimated digit? • The last significant digit ( sig fig farthest to right side)

  28. 400 Mixed Bag • What is a time tested hypothesis called when it is unlikely to be disproved? • theory

  29. 600 Mixed Bag • Convert 0.0000765 to scientific notation • Convert 234.67 to scientific notation • 7.65 x 10 –5 • 2.3467 x 10 2

  30. 800 Mixed Bag • Solve 34.5 m x 10 m • 300 m2

  31. 1000 Mixed Bag • Solve 345.345 m – 14.1 m • 331.2 m

  32. Final Jeopardy • Discuss the difference between accuracy and precision • Precision is how close measurements fall to each other • Accuracy is how close the measurements are to the accepted value

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