- Text
- Electrons,
- Atoms,
- Atom,
- Hydrogen,
- Electron,
- Equation,
- Particles,
- Element,
- Elements,
- Ions,
- Turley

12 2. One cereal bar has a mass of 37 g. What is the mass of 6 cereal bars? Is that more than or less than 1 kg? Explain your answer. The mass is 222kg and it is less than 1 kg because 1k=1,000g 3. Wanda needs to move 110 kg of rocks. She can carry l0 hg each trip. How many trips must she make? Explain your answer. 110 kg = 1100hg 1100hg/10hg=110 She needs to make 110 trips. 4. Dr. O is playing in her garden again She needs 1 kg of potting soil for her plants. She has 750 g. How much more does she need? Explain your answer. 5. Weather satellites orbit Earth at an altitude of 1,400,000 meters. What is this altitude in kilometers? 1,400,000= 1,400 km She needs 250 more grams because 1,000 g is equal to 1 kg 6. Which unit would you use to measure the capacity? Write milliliter or liter. a) a bucket __________ Liter b) a thimble __________ Milliliter c) a water storage tank__________ Liter d) a carton of juice__________ Liter 7. Circle the more reasonable measure: a) length of an ant 5mm or 5cm b) length of an automobile 5 m or 50 m c) distance from NY to LA 450 km or 4,500 km d) height of a dining table 75 mm or 75 cm 8. Will a tablecloth that is 155 cm long cover a table that is 1.6 m long? Explain your answer. No, because 155 cm = 1.55m, so it is .05 m short. 9. A dollar bill is 15.6 cm long. If 200 dollar bills were laid end to end, how many meters long would the line be? 200x15.6=3120 So it would be 31.2 meters long 10. The ceiling in Jan’s living room is 2.5 m high. She has a hanging lamp that hangs down 41 cm. Her husband is exactly 2 m tall. Will he hit his head on the hanging lamp? Why or why not? 2.5m - 2m= 5m 5m= 500 cm So yes he will have plenty of room and wont hit his head.

13 Using SI Units Match the terms in Column II with the descriptions in Column I. Write the letters of the correct term in the blank on the left. Column I Column II __K___ 1. distance between two points a. time ___E__ 2. SI unit of length ___m__ 3. tool used to measure length ___G__ 4. units obtained by combining other units __B___ 5. amount of space occupied by an object __H_ 6. unit used to express volume __F__ 7. SI unit of mass __C___ 8. amount of matter in an object __D___ 9. mass per unit of volume _0___ 10. temperature scale of most laboratory thermometers __L___ 11. instrument used to measure mass ___A__ 12. interval between two events ____J_ 13. SI unit of temperature ___I__ 14. SI unit of time __N___ 15. instrument used to measure temperature b. volume c. mass d. density e. meter f. kilogram g. derived h. liter i. second j. Kelvin k. length L. balance m. meterstick n. thermometer o. Celsius Circle the two terms in each group that are related. Explain how the terms are related. 16. Celsius degree, mass, Kelvin ___Both Celsius degree and Kelvin are involved in measurement of tempurture.________________ 17. balance, second, mass _A balance is used to find gthe mass an d the mass is the amount of density found in an object.___ 18. Kilogram, liter, cubic centimeter __________________________________________________ A kilogram and liter are both in the metric system and ________________________________________________________________________________ are used to represent the object. 19. time, second, distance __________________________________________________________ Time is the interval between something and can ________________________________________________________________________________ be measured in seconds. 20. decimeter, kilometer, Kelvin _____________________________________________________ A decimeter and kilometer are both used in the metric ________________________________________________________________________________ system.

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Linear Molecular Geometry Orbital E

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Trigonal Bi Pyramidal Molecular Geo

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Octahedral Molecular Geometry Orbit

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Orbitals Equation Lone Pairs Angle

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78 Chapter 9 Unit 4 Chemical Names

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Stoichiometry and Balanced Equation

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102 Stoichiometry and balanced equa

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%yield = 6.1 tons × 100 = 64% 9.6t

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154 HCl + H2O ⇌ H3O + + Cl¯ HCl

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First Atomic Symbol Name Ionization

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Collier County CHEMISTRY EXAM FORMU

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CHEMISTRY EXAM FORMULA AND RESOURCE