Press F5 Press the down arrow to view problems. Test Review Questions How many significant figures are in the following measurements? 1. 0.0040 mL ________.

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Presentation transcript:

Press F5 Press the down arrow to view problems

Test Review Questions How many significant figures are in the following measurements? mL ________ g________ cm ________ L ________ ×10 3 g ________ 6. π ________

Test Review Questions Write the following measurements in scientific notation mL ________________ g ________________ Write the following measurements in standard notation ×10 6 mL ________________ ×10 -5 g ________________

Test Review Questions Record the following measurements with the correct number of significant figures. 11. ________________ 12. ________________ 1234 cm mL

Test Review Questions Round the following measurements to 2 significant figures ,578 mL ________________ g ________________ What is the marked interval in the following measurement? mL ________________ g ________________ g ________________

Test Review Questions 18. How close a measurement comes to a true value is ____________________ 19. A measurement of how much gravity pulls on an object ____________________ 20. The SI unit for mass is the ____________________ 21. The SI unit for energy is the ____________________

Test Review Questions 22. A certain substance has a temperature of 100°C what is the temperature in K (K=°C+273) ____________________ 23. Generally, as the temperature of a substance decreases its volume ____________________ 24. Generally, as the temperature of a substance decreases its density ____________________

m + 9 m CalculationCalculator says:Answer m g – 23.7 g g cm × 2.4 cm cm cm 3 ÷ 5 cm cm Test Review Questions Round the following answers to the proper number of significant figures

Test Review Questions 29. Fill in the blank. 1 m = ______ nm 30. Fill in the blank. 1 km = ______ m 31. Fill in the blank. 1 m = ______ dm 32. The symbol for calcium is ______.

Test Review Questions Complete the following problems. Show all relevant work. 33. Convert 3.27 ns to Ms 34. A certain solid has a density of 2.96 g/mL. What is this density in units of mg/gallon? (Note: 1 L = 33.8 oz; 1 oz = cups; 1 cup = gallons) 35. A student has 20.4 mL of a liquid that has a density of 8.78×10 -5 g for every microliter. What mass, in grams, does the student have?