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CHEM 167 SI

Jeopardy. CHEM 167 SI. Terms. Sig Figs. Unit Con. Isotopes. 100. 100. 100. 100. 200. 200. 200. 200. 300. 300. 300. 300. 400. 400. 400. 400. 500. 500. 500. 500. Row 1, Col 1. What are protons, neutrons, and electrons?. Components of an atom (3 things). 1,2.

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CHEM 167 SI

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  1. Jeopardy CHEM 167 SI

  2. Terms Sig Figs Unit Con Isotopes 100 100 100 100 200 200 200 200 300 300 300 300 400 400 400 400 500 500 500 500

  3. Row 1, Col 1 What are protons, neutrons, and electrons? Components of an atom (3 things)

  4. 1,2 What is 6 and 1.41000x104? Significant figures and scientific notation for 14,100.0

  5. 1,3 40 m/s Which is faster, going 80 mph or 40 m/s?

  6. 1,4 What are protons; electrons; neutrons? An isotope has the same number of ______ and ______ but a different number of _______.

  7. 2,1 What is a chemical change? The type of change when iron rusts

  8. 2,2 What are 2 and 2.5x10-3? Significant figures and scientific notation for 0.0025

  9. 2,3 38°C Which one of the following is the highest temperature? 38°C, 38°F, or 38 K

  10. 2,4 What is 17? The number of neutrons in: 33S

  11. 3,1 What is accuracy? How close a set of measurements are to the true value

  12. 3,2 What is 1212? 1211 + 2.205 – 1.7 = (with proper sig figs)

  13. 3,3 72°F and 295 K The temperature on a spring day is around 22°C. What is the temperature in °F and K?

  14. 3,4 What is the average atomic mass of an element? The average of isotopic masses for an element.

  15. 4,1 What is covalent bonding? Bonding that involves the sharing of electrons

  16. 4,2 What is 1.29? (1.425x102)(2.61x103) = (2.89x105) (with proper sig figs)

  17. 4,3 1.109 g/mL An unknown liquid created by NASA’s Jet Propulsion Lab was found to have a density of 69.22 lb/ft3. What is the density of this liquid in g/mL? 2.54 cm=1 in; 2.205 lb=1 kg

  18. 4,4 What is 121.76 amu? The atomic weight of antimony if there are two naturally occurring isotopes, Sb-121 with an isotopic mass of 120.904 and an abundance of 57.21% and Sb-123 with an isotopic mass of 122.904 amu and an abundance of 42.79%. .

  19. 5,1 What is organic chemistry? Group of chemistry that involves carbon compounds

  20. 5,2 What is 93.0 cm/s? [(12.67 cm + 19.2 cm) x 3.99] = 1.367 s (with proper sig figs)

  21. 5,3 $5,626 A gold bar has the following dimensions: 2.50cm x 2.00cm x1.50 cm. Assuming that gold can be sold for $1100/oz, what is the value of the gold bar? The density of gold is 19.32 g/cm3, and 1 lb = 453.6 g.

  22. 5,4 What are Br-79: 50.651% and Br-81: 49.349%? Bromine has two naturally Occurring isotopes: Br-79 (78.918 amu) and Br-81 (80.916 amu). The atomic mass of Br is 79.904 amu. What are the fractional abundances of these isotopes?

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