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JEOPARDY
Third Nine Weeks- Third Nine Weeks- 9 weeks review9 weeks review
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ElEl DoradoDorado HighHigh SchoolSchool AZTECSAZTECS
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A: electron
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The cathode ray experiments led to which particle being discovered?
A nucleusB protonC neutronD electron
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The protons in Rutherford’s experiments were used to —
F identify chemical propertiesG identify the melting pointH determine molecular massJ bombard sheets of goldA: J bombard sheets of gold
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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
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Which type of solution has achievedequilibrium between solute andsolvent if the solute is still visibleafter mixing?F an unsaturated solutionG a saturated solutionH a supersaturated solutionJ a dilute solutionA: G. A saturated solutin
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A solution that contains themaximum amount of solute that issoluble at a given temperature issaid to be —F unsaturatedG saturatedH supersaturatedJ diluted
500A: G. saturated
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Which substance would be least likelyto dissolve in a polar solvent?
F nonpolar moleculeG acidsH polar moleculeJ ionic compound
00
A: F. nonpolar molecule
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Using the periodic table, predict which elements will have similar chemical properties or reactivity.
F cadmium, calcium, and carbonG magnesium, strontium, and bariumH rubidium, yttrium, and zirconiumJ nitrogen, sulfur, and bromine
200A: G
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How many mL of stock NH3 isneeded to make 100.0mL of 1.00MNH3? Your stock solution is 14.8M.(Answer in significant figures with mLfor unit.)
300
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A: 6.76 mL
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The number of valence electrons inGroup 2 elements is —
F 0G 1H 2J 3
I400A: H. 2
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What happens to the number ofelectrons in an atom as the atomicnumber on the Periodic Tableincreases?
A increasesB decreasesC remains the sameD depends on the atomo
500A: A. increases
THIS
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A: D
TH
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Which set correctly lists the types ofelectromagnetic radiation in order,from least to most energetic?
A ultraviolet, visible, infrared, microwaveB infrared, microwave, ultraviolet, xraysC ultraviolet, visible violet, visible red, infraredD radio, microwave, ultraviolet, gamma
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How many neutrons wouldhave?
F 16G 18H 20J 32
A: G. 18
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Which of the following is TRUE aboutNickel-59?
A 28 neutronsB 28 protonsC 31 electronsD 59 neutrons
A: B. ) 28 protons
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A: F. the naturally occurring isotopes
H
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Which of the following is used to calculate the average atomic mass of an element?
F the naturally occurring isotopesG the five most abundant isotopesH the isotopes that are man madeJ the least common isotopes
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Which of the following atoms wouldhave the largest ionic radius?
A lithiumB sodiumC potassiumD cesium00
A: D. Cesium
CITY.
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What will happen to the ability of a solid to dissolve in a liquid if the temperature increases?
F solubility of the solid always increasesG solubility of the solid always decreasesH solubility of the solid usually increasesJ solubility of the solid usually decreases
A: H. solubility of the solid usually increases
A
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A solution in which more solute is dissolved than is typically soluble at a given temperature is —
A unsaturatedB saturatedC supersaturatedD diluted
A. C. supersaturated
A
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Which type of solution has achieved equilibrium between solute and solvent if the solute is still visible after mixing?
F an unsaturated solutionG a saturated solutionH a supersaturated solutionJ a dilute solution
A: G. A saturated solution
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A sample of 0.0255 mol potassiumhydroxide, KOH, was dissolved inwater to yield 10.0 mL of solution.What is the molarity of the solution?
A 2.55 MB 2.55 x 103 MC 392 MD .392 M
A: 2.55 M
Th
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What volume of 2.5M NaOH solutioncontains 3.25 mol of NaOH?
F 0.098 LG 0.575 LH 1.30 LJ 1.45 L
A: H. 1.30 L
T
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What is the molarity of a solution that contains 0.400 mol HCl in 9.79 L solution?
F 0.0133 MG 0.0409 MH 0.959 MJ 5.67 M
A: G. 0.0409 M
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2Students are using heat, chemicals,and glassware in a laboratoryexperiment. Which of these isthe BEST method of eye protection?
F safety gogglesG contact lensesH prescription eye glassesJ no eye protection needed00
A: F. Safety goggles
T
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An isotope of mercury has 80protons and 120 neutrons. What isthe mass number of this isotope?A 80B 120C 200D 201
A: C. 200
T
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Students complete a laboratory investigation. Who is responsible for returning the materials to theirproper places?
A students who did the investigationB students entering the laboratoryC building services personnelD the chemistry teacher
A: A. students who did the investigation
T
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Why is an atom considered electrically neutral?
F neutrons equal the number of protonsG proton forces pull on the neutronsH electrons equal the number of protonsJ electrons equal the number of neutrons0
A: H. Electrons equal the number of protons
C
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