Part I. Math Skills. 1. Convert 0.01 kilograms to grams. 2. Convert 180 centiseconds to seconds. 3. Convert 2.5 moles to millimoles.
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1 Name Date: Part I. Math Skills. 1. Convert 0.01 kilograms to grams. 2. Convert 180 centiseconds to seconds. 3. Convert 2.5 moles to millimoles. 4. Convert 4500 meters to kilometers. 5. Convert 5000 seconds to megaseconds. 6. Convert 52 nanograms to micrograms.. 7. Convert 5.0 millimeters to decimeters. 1
2 8. Write cm in scientific notation. 9. Write m in scientific notation. 10. Write 1.5 x 10 4 g in long form. 11. Write 2.13 x 10-3 g in long form. 12. Calculate 2.0 m 4.72 m, and write the answer with the correct unit and the correct number of significant figures. 13. Calculate 5.2 g cm 3, and write the answer with the correct unit and the correct number of significant figures. 14. Calculate 13.1 s s, and write the answer with the correct unit and the correct number of significant figures. 15. Calculate mol mol, and write the answer with the correct unit and the correct number of significant figures. 2
3 16. If a liquid has a volume of 62.1 cm 3 and a mass of 48.1 g, what is its density? Write the answer with the correct unit and the correct number of significant figures. 17. A piece of titanium has a density of 20.1 g/ml and a volume of 5.20 ml. What is the mass of this piece of metal? Write the answer with the correct unit and the correct number of significant figures. 18. The density of a piece of brass is 8.4 g/cm 3. If the mass of the brass is 510. g, what is the volume of the brass? Write the answer with the correct unit and the correct number of significant figures L of hydrogen at 6.5 atm is used to fill a balloon to a final pressure of 1.15 atm. What is the balloon s final volume? Write the answer with the correct unit and the correct number of significant figures. 20. A sample of oxygen gas occupies a volume of 5.15 ml at 1.8 kpa. What will its pressure be if the volume decreases to 2.8 ml? Write the answer with the correct unit and the correct number of significant figures. 3
4 Bonus: Calculate ( ml) ( ml), and write the answer with the correct unit and the correct number of significant figures OR list the rules for significant figures OR round to 2 significant figures. Select just one. Part II. Definitions. Define each term. 1. Chemistry. 2. Matter. 3. Element. 4. Atom. 5. Kinetic theory of matter. List the four major points. 6. Compound. Include an example. 4
5 7. Physical change. Include an example. 8. Chemical change. Include an example. 9. Energy. 10. Kinetic energy. 11. Temperature. 12. Endothermic change. 13. Exothermic change. 14. Law of conservation of mass. 15. Law of conservation of energy. 5
6 Bonus: Define plasma OR sublimation OR epistemology OR biology OR physics OR rationalism OR empiricism. Part III. Tables and plots. 1. Fill in the following flowchart (think critically). uniform property? single substance? further decomposable? 2. Complete the below table. Property moldable does not react with bleach is a gas more dense than air conducts heat is magnetic boils at 4.22 K nonflammable melts at K highly combustible Physical or chemical? 6
7 3. Look at the below states of matter. Draw an arrow at the x- axis indicating the direction in which energy decreases. For each state of matter, state the bond strength, and indicate what the bond strength means with respect to the movement of atoms. 4. In the following table, indicate whether each state of matter has the property on the left (for compressibility, indicate relative degree of). definite shape definite volume compressibility solid liquid gas 5. Examine the following cooling curve. Append each state of matter to the chart. For each phase change (s l, l g, g l, and l s), indicate whether energy is absorbed or released. 7
8 6. For each plot below, name the gas law that satisfies the x and y axis labels. Then, complete each plot by drawing the trendline. Choose one plot and explain its meaning. 8
9 Bonus: Write the equation for each gas law on each plot from Q6 above OR describe plasma and place a drawing of it in the correct location on the plot in Q3 OR describe the Bose- Einstein condensate and place a drawing of it in the correct location on the plot in Q3 OR list four properties that gases have. End of Exam Bonus: Name a single thing that you learned that you found interesting so far. Tell me why you find it interesting. 9
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