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Review for CHAPTER 1 Test

Review for CHAPTER 1 Test. Chemistry Mrs. Boules. You have 5 seconds from ringing the bell to answer the following questions:. How many significant figures does the following value contain?. 130. 3. How many significant figures does the following value contain?. .000105000. 6.

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Review for CHAPTER 1 Test

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  1. Review for CHAPTER 1 Test Chemistry Mrs. Boules

  2. You have 5 secondsfrom ringing the bellto answer the following questions:

  3. How many significant figures does the following value contain? 130. 3

  4. How many significant figures does the following value contain? .000105000 6

  5. How many significant figures does the following value contain? 4.000 4

  6. How many significant figures does the following value contain? 8.2 X 10-3 2

  7. How many significant figures does the following value contain? 1000 1

  8. How many significant figures does the following value contain? 50,000. 5

  9. Scientific Notation • Which of the following is the correct scientific notation for 0.0005250? a. 52.50 X 10-4 b. 5.25 X 10-4 c. 52.50 X 10-3 d. 5.250 X 10-4 d

  10. Which of the following is the correct value for the 8.8 X 10-3? a. 8,800 b. 8,800. c. .0088 d. .000880 c

  11. Please explain the rounding rule when adding and subtracting. The answer must contain as many decimal places as the value with the least number of decimal places.

  12. Bring a calculator and a piece of paper for the next question..

  13. Please Round Appropriately 418.55 312.12 + .0150 730.68

  14. Round the following number to 3 significant figures: 412.5001 413

  15. Round the following to 3 significant figures: 5.525 5.52

  16. Bring a calculator and a piece of paper for the next question

  17. Please Round Appropriately 18.5 X 2.675 49.5

  18. Moving on to ……Density What is the density equation? D=Mass Volume

  19. In the lab, you were handed a block of lead…..EXPLAIN how would you find the density of this lead block??Be as thorough as possible

  20. Bring a calculator and a piece of paperfor the next question

  21. Calculations….Don’t for get rounding rules!! Calculate the densityif a block of copper has a mass of 15.5grams and a volume of 3.5cm3

  22. What is the density of water? 1.00g/ml

  23. Name this Symbol: Fe Ca Hg Iron Calcium Mercury

  24. Continuation…symbols Na W Sr Sodium Tungsten Strontium

  25. What symbol is this element? Fluorine Xenon Francium F Xe Fr

  26. Continuation Silver Helium Lithium Ag He Li

  27. What are the 4 states of matter? Solid Liquid Gas Plasma

  28. What is the equation for converting from Celsius to Kelvin? K=0C + 273

  29. Bring a calculator and a piece of paper

  30. Convert 30.oC to Kelvin. 303K

  31. What is the difference between physicaland chemical change?

  32. Define Element? The smallest, indivisible part of a substance

  33. Define Homogeneous Mixture A mixture in which all the parts look similar

  34. From the lab…. • Indicate if the following is a physical or chemical change: Melting Birthday Candle Wax Adding Hydrochloric Acid to Magnesium Grinding Copper Sulfate P C P

  35. Is the following an example of homogeneous or heterogeneous Mixture? Air Italian Dressing Milk Homogeneous Heterogeneous Homogeneous

  36. Please study tonight!! Test tomorrow!

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