2. JEOPARDY Third Nine Weeks- 9 weeks review

3. ElDoradoHighSchoolAZTECS 100 200 300 400 500

4. A: electron S2C04 Jeopardy Review The cathode ray experiments led to which particle being discovered? A nucleus B proton C neutron D electron

5. The protons in Rutherford’s experiments were used to — F identify chemical properties G identify the melting point H determine molecular mass J bombard sheets of gold A: J bombard sheets of gold S2C04 Jeopardy Review

6. Which of the following statements is MOST accurate regarding atoms? F Most atoms cannot combine with other atoms. G Chemical reactions divide atoms into smaller units. H Atoms of the same element may have different mass numbers. J Atoms only contain protons A: H atoms of the same element may have different mass numbers S2C04 Jeopardy Review

7. Which type of solution has achieved equilibrium between solute and solvent if the solute is still visible after mixing? F an unsaturated solution G a saturated solution H a supersaturated solution J a dilute solution A: G. A saturated solutin S2C04 Jeopardy Review

8. A solution that contains the maximum amount of solute that is soluble at a given temperature is said to be — F unsaturated G saturated H supersaturated J diluted 500 A: G. saturated S2C04 Jeopardy Review

9. Which substance would be least likely to dissolve in a polar solvent? F nonpolar molecule G acids H polar molecule J ionic compound 00 A:F. nonpolar molecule S2C04 Jeopardy Review

10. Using the periodic table, predict which elements will have similar chemical properties or reactivity. F cadmium, calcium, and carbon G magnesium, strontium, and barium H rubidium, yttrium, and zirconium J nitrogen, sulfur, and bromine 200 A: G S2C04 Jeopardy Review

11. How many mL of stock NH3 is needed to make 100.0mL of 1.00M NH3? Your stock solution is 14.8M. (Answer in significant figures with mL for unit.) 300 S2C04 Jeopardy Review A: 6.76 mL

12. The number of valence electrons in Group 2 elements is — F 0 G 1 H 2 J 3 I 400 A: H. 2 S2C04 Jeopardy Review

13. What happens to the number of electrons in an atom as the atomic number on the Periodic Table increases? A increases B decreases C remains the same D depends on the atomo 500 A: A. increases THIS S2C04 Jeopardy Review

14. A: D TH S2C04 Jeopardy Review Which set correctly lists the types of electromagnetic radiation in order, from least to most energetic? A ultraviolet, visible, infrared, microwave B infrared, microwave, ultraviolet, xrays C ultraviolet, visible violet, visible red, infrared D radio, microwave, ultraviolet, gamma

15. How many neutrons would have? F 16 G 18 H 20 J 32 A: G. 18 S2C04 Jeopardy Review

16. Which of the following is TRUE about Nickel-59? A 28 neutrons B 28 protons C 31 electrons D 59 neutrons A: B. ) 28 protons S2C04 Jeopardy Review

17. A: F. the naturally occurring isotopes H S2C04 Jeopardy Review Which of the following is used to calculate the average atomic mass of an element? F the naturally occurring isotopes G the five most abundant isotopes H the isotopes that are man made J the least common isotopes

18. Which of the following atoms would have the largest ionic radius? A lithium B sodium C potassium D cesium 00 A: D. Cesium CITY. S2C04 Jeopardy Review

19. What will happen to the ability of a solid to dissolve in a liquid if the temperature increases? F solubility of the solid always increases G solubility of the solid always decreases H solubility of the solid usually increases J solubility of the solid usually decreases A: H. solubility of the solid usually increases A S2C04 Jeopardy Review

20. A solution in which more solute is dissolved than is typically soluble at a given temperature is — A unsaturated B saturated C supersaturated D diluted A. C. supersaturated A S2C04 Jeopardy Review

21. Which type of solution has achieved equilibrium between solute and solvent if the solute is still visible after mixing? F an unsaturated solution G a saturated solution H a supersaturated solution J a dilute solution A: G. A saturated solution S2C04 Jeopardy Review

22. A sample of 0.0255 mol potassium hydroxide, KOH, was dissolved in water to yield 10.0 mL of solution. What is the molarity of the solution? A 2.55 M B 2.55 x 10 3 M C 392 M D.392 M A: 2.55 M Th S2C04 Jeopardy Review

23. What volume of 2.5M NaOH solution contains 3.25 mol of NaOH? F 0.098 L G 0.575 L H 1.30 L J 1.45 L A: H. 1.30 L T S2C04 Jeopardy Review

24. What is the molarity of a solution that contains 0.400 mol HCl in 9.79 L solution? F 0.0133 M G 0.0409 M H 0.959 M J 5.67 M A: G. 0.0409 M S2C04 Jeopardy Review

25. 2Students are using heat, chemicals, and glassware in a laboratory experiment. Which of these is the BEST method of eye protection? F safety goggles G contact lenses H prescription eye glasses J no eye protection needed00 A: F. Safety goggles T S2C04 Jeopardy Review

26. An isotope of mercury has 80 protons and 120 neutrons. What is the mass number of this isotope? A 80 B 120 C 200 D 201 A: C. 200 T S2C04 Jeopardy Review

27. Students complete a laboratory investigation. Who is responsible for returning the materials to their proper places? A students who did the investigation B students entering the laboratory C building services personnel D the chemistry teacher A: A. students who did the investigation T S2C04 Jeopardy Review

28. Why is an atom considered electrically neutral? F neutrons equal the number of protons G proton forces pull on the neutrons H electrons equal the number of protons J electrons equal the number of neutrons0 A: H. Electrons equal the number of protons C S2C04 Jeopardy Review