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Part I Answer the following questions in the space provided. Revised for 2022-2023 Students 1. Give an intensive physical property ________________________ 2. Give an extensive physical property ________________________ 3. Give an intensive chemical property ________________________ 4. Why can you not have an extensive chemical property? ________________________________________________________________ ________________________________________________________________ 5. Define compound: ____________________________________________ ________________________________________________________________ 6. What are the three difference between a compound and a mixture (just give the words, do not need to explain)? ________________________________________________________________ 7. Explain why a compound and a homogeneous mixture are different. (can not use separation technique or characteristics of material). __________________________________________________________________ __________________________________________________________________ 8. _______________ chemistry (or science) is done so that the knowledge can be used to create new materials or products (for example). ______________________________________________________________________ _______________________________________________________________________ 12. Give me two observations of a chemical reaction. ______________________ and ____________________________ 13. _____________________ is a solid formed in a liquid (or solution). 14. What are the 4 basic principles that Mr. McLeod believes can explain any chemical concept (except nuclear chemistry). _________________________, _____________________________, _________________________, and _________________________ 15. Define Kinetic Molecular Theory (KMT): ___________________________________________________________ _________________________________________________________________________ _______________________________ 16. _____________ is the symbol for base unit of mass. 17. Give me a piece of lab safety equipment, explain its function and explain where it is in the room.(2020-2021 Student do not do) 18. Name of the base unit for temperature. __________________ 19. Symbol for the base unit of amount of substance. ______________ 20. Name for base unit (or particle) of an ionic compound. _______________ 21. Liquids and Solids are consisted to be in the ____________ phase and do not have enough energy to overcome their ______________________? 22. Why do gases take the shape of any container? Answer using KMT (i.e. what is going on with the Particles?). Part II Answer the following problems showing all work. |
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Part I Answer the following problems in space provided and where appropriate showing all work. |
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4. ______________ is defined as the reproducibility of results. 5. To determine the number of sig fig in the answer, what is the first question you ask yourself? ______________________________________________________________________________ <strike>For the following calculations, to show work you need to be giving me two numbers (fill in the two blanks) as part of your answer (as we discussed in class). Remember, every number needs units after them and numbers greater than 1000 and less than 0.001 must be in scientific notation (SN) anywhere in your work. 6) 4.3s + 12.34s + 0.545s = ___________________ = ______________________ |
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4. What do you "use" to make an observation? |
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7) 200L - 0.53L = _______________ = _________________ 8. (40.2 cm ) (5.040 cm ) = _________________ = _________________ |
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5. ______________ deals with the reproducibility (focus on process/mechanics,etc) of quantitative observation. |
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9. (9.05 m ) (10. m) (3.40 m ) = __________________ = _________________ |
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6. What is the main difference between a qualitative and quantitative observation? |
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______________________________________________________________________________ |
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10. ( 3.00 E-4 cm ) / (8.01 E-6 s ) = __________________ = _________________ 11. ( 312.05 L ) / (67.0 min ) = __________________ = ________________ |
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12. ( 5.03 E8 cm ) ( 9.020 cm ) ( 6.00 E-2 cm ) = _________________ = ________________</strike> |
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7. ____________ deals with how close your observation/results are to the "known" answer/goal/target (i.e. what you are trying to get). |
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Convert from actual number to Scientific Notation for the following: |
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8. Write in the blank a qualitative observation. ________________________ |
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13. 0.000034050 cm = ____________________ |
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14. 30950000 ft = _________________ |
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9. Write 300g with 2 significant figures (sig fig): ________________ |
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15. Write 300g with 2 significant figures (sig fig): ________________ |
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16. Now with 1 sig fig _____________ and with 3 sig fig ____________ |
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10. Now with 1 sig fig _____________ and with 3 sig fig ____________ |
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