Have an account?
Skip to Content
Build your own quiz
Suggestions for you
Chemistry
10th -
12thgrade
Chemistry Final Exam Review Fall 2021-2022
75 questions
Show Answers
See Preview
- 1. Multiple ChoiceWhich state of matter will hold its shape without a container?SolidLiquidGasPlasma
- 2. Multiple ChoiceThe kinetic theory states that the higher the temperature, the faster theparticles that make up a substance movebonds between atoms break downmolecules of gas rush togetherlighter particles within a substance clump together
- 3. Multiple ChoiceWhat scientist is best known for his "Plum Pudding" model of the atom?J.J. TomsonErnest RutherfordJohn DaltonDemocritus
- 4. Multiple ChoiceRutherford's gold foil experiment provided evidence that...Negative and positive charges are spread evenly throughout the atom.Alpha particles have a positive charge.Gold is not a dense as previously thought.There is a dense positively charged nucleus at the center of an atom.
- 5. Multiple Choice
How many electrons are in an atom with an atomic number of 20, an atomic mass of 45, and a charge of +2?
20
10
2
18
- 6. Multiple ChoiceWhat particle provided the positive charge for an atom?protonneutronelectronnucleus
- 7. Multiple ChoiceWhich particle does not contribute mass to the atom?ProtonNeutronElectronNucleus
- 8. Multiple Choice
Which of the following families is the least electronegative?
noble gases
Halogens
transition metals
alkali metals
- 9. Multiple ChoiceWhich element has the highest ionization energy?FClBrI
- 10. Multiple ChoiceGive the formula for oxygen dichlorideOCl2
O2Cl2
OClO2Cl - 11. Multiple Choice
Give the formula for copper(II) chloride
CuCl2
CuCl
Cu2Cl
Cu2Cl2
- 12. Multiple Choice
Give the formula for magnesium carbonate
Mg2C
Mg2CO4
Mg2(CO3)2
MgCO3
- 13. Multiple Choice
Name the compound:
CCl4
carbon carbon tetraiodide
carbon tetrachloride
monocarbon tetrachloride
water
- 14. Multiple Choice
Name the compound:
Ba3(PO4)2
tribarium diphosphate
barium diphosphate
barium phosphate
barium phosphide
- 15. Multiple Choice
Name the compound:
SnO2
tin(II) oxide
tin(IV)oxide
tin(II)oxegen
tin oxide
- 16. Multiple Choice
What is the Law of Conservation of Mass?
It states that no matter can be created or destroyed.
It states that matter can be created or destroyed.
It states that no sound can be created or destroyed.
- 17. Multiple ChoiceAt the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?the product is doubledthe product is half the mass of the reactantsthe mass is the samethe mass changes depending on the reaction
- 18. Multiple Choice
Which of the following is an example of synthesis?
2Na + Br2 --> 2NaBr
2KClO3 --> 2KCl + 3O2
2HgO + Cl2 --> 2HgCl + O2
Cl2 + 2NaBr --> 2NaCl + Br2
- 19. Multiple ChoiceWhich chemical reaction forms Carbon Dioxide and Water?Double ReplacementSingle ReplacementCombustionDecomposition
- 20. Multiple ChoiceWhat coefficient should be used to make the following equation balanced?
N2+O2--> _NO1234 - 21. Multiple ChoiceWhich of the following is an unbalanced equation?CaCO3 --> CaO + CO2PbO2 + 2H2-->2Pb + H2O2Na+ 2H2O-->2NaOH + H2CS2 + 2O2 --> CO2 + 2SO2
- 22. Multiple Choice
How many grams are in 1.5 moles of O?
9.0 x 1023 grams
16 grams
24 grams
6.0 x 1023 grams
- 23. Multiple Choice
How many moles are in 4.30 x 1024 molecules of H2O?
6.02 x 1023
7.14
18.0
129
- 24. Multiple Choice
How many molecules are in 100. g of C6H12O6?
180. g
3.34 x 1023
6.02 x 1023
6.02 x 1025
- 25. Multiple ChoiceIn the equation 2 Al2O3 --> 4 Al + 3 O2, what is the mole ratio of aluminum to oxygen?10:63:44:32:3
- 26. Multiple Choice
How many moles of H2O are produced by 4.8 moles of O2?
2H2 +O2 --> 2H2O
9.6 mol H2O
317 mol H2O
906 mol H2O
3.7 mol H2O
- 27. Multiple Choice
From the reaction: B2H6 + 3O2 --> 2HBO2 + 2H2O
What mass of O2 will be needed to burn 36.1 g of B2H6?
62.6 g O2
3.91 mol of O2
125 g O2
- 28. Multiple ChoiceHow many liters of NH3 are needed to react completely with 30.0L of NO at STP?
4NH3+6NO --> 5N2 + 6H2O5.0 L20.0 L7.5 L120.0 L - 29. Multiple ChoiceIn order to convert to Kelvin, you add ______ to the Celsius measurement.372273237732
- 30. Multiple Choice
You have a gas that has a pressure of 2 atm and a volume of 10L. What would be the new volume if the pressure was changed to 1 atm?
5 L
20 L
It would stay at 10L
1 L
- 31. Multiple ChoiceIn the ideal gas law, which variable represents the gas constant?nRTV
- 32. Multiple Choice
A gas has a volume of 55.0L at a temperature of 55.0 degrees Celsius. What temperature will the gas be if the volume increased to 76.0 L?
453 K
275 K
502 K
353 K
- 33. Multiple Choice
How many significant figures does 1.90 have?
3
2
6
1
- 34. Multiple Choice
Round 0.010229 to four sig figs
1022
1023
0.01023
0.0102
0.01022
- 35. Multiple ChoiceSolve & Round to Correct Sig Figs.
100 / 2.0 =5050.50.050.00 - 36. Multiple ChoiceMultiply (2.45 x 104) x (8.78 x 106) and express in scientific notations.2.15 x 10112.15 x 10142.10 x 10142.10 x 1015
- 37. Multiple ChoiceWhich of the following is correct scientific notation?20.35 x 104.2035 x 1042035 42.035 x104
- 38. Multiple Choice
What is the molarity of 4.0 grams of sodium chloride in 3,800 mL of solution?
0.018 M
0.0011 M
1.052 M
0.062 M
- 39. Multiple ChoiceYou are given the following percentages: 40.05% S and 59.95% O. Find the empirical formula for these elements.SOSO2SO3SO4
- 40. Multiple ChoiceWhat atom matches this electron configuration?
1s2 2s2 2p6 3s2NeonMagnesiumAluminumPotassium - 41. Multiple ChoiceWhat is the shorthand electron configuration for Sulfur atom?[Ar] 3p4[He] 3s23p4[Ne] 3s23p4[Na] 3s23p3
- 42. Multiple Choice
What element is on period 4 group 10?
Db
Ni
Pd
Ti
- 43. Multiple Choice
Molar mass of NaOH is ______________________
40.00 grams/mol
50.00 grams/mol
45.00 grams/mol
38.00 grams/nol
- 44. Multiple ChoiceThe variable that a scientist changes in a scientific experiment is called the:IndependentDependentControlConstant
- 45. Multiple ChoiceThe alkali metals have how many valence electrons?1278
- 46. Multiple ChoiceWhich particles give the identity of an atom?ProtonsNeutronsElectronsValence electrons
- 47. Multiple ChoiceWhich type of bond uses the transfer of electrons?covalent bondsionic bondsmetallic bondsall chemical bonds
- 48. Multiple ChoiceIsotopes are elements that have variations in the number of:electronsneutronsprotonsions
- 49. Multiple Choice
Covalent bonds form when
the electronegativity difference between two atoms is very large.
electrons are completely transferred between two atoms.
pairs of electrons are shared between two atoms.
ions are held together by opposite charges.
- 50. Multiple ChoiceWhich of the following is a chemical change?Iron rustingGlass breakingClothing rippingHair cut
- 51. Multiple Choice
If a sample has a mass of 1.25 x 102 g and a volume of 50. mL, what is its density? Is it a physical or chemical property?
0.40 g/mL; physical
0.40 g/mL; chemical
2.5 g/mL; physical
2.5 g/mL; chemical
- 52. Multiple ChoiceWhat is the volume occupied by 51.0 g of NH3 gas at STP?0.439 L22.8 L67.2 L91.9 L
- 53. Multiple Choice
Which of these are pure substances?
A onlyA and CD and AA and B - 54. Multiple Choice68 cm = ___________ mm0.686.868680
- 55. Multiple ChoiceThis bullseye demonstrates...High Accuracy & High PrecisionHigh Accuracy & Low PrecisionLow Accuracy & High PrecisionLow Accuracy & Low Precision
- 56. Multiple ChoiceThe students measured length during a science experiement, they got 12 cm. But the actual measurement was 14.25 cm. What was the percent error?15.79%18.75%2.25%18%
- 57. Multiple ChoiceSeparating mixtures based on boiling points.DesalinationDistillationDecantationCondensation
- 58. Multiple Choice
24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu. What is the average mass of this element?
74.92 amu24.97 amu75.01 amu74.51 amu - 59. Multiple ChoiceSolve this equation for beta decay.
614C = ___ + -10e410Be714N210He613C - 60. Multiple Choice
If 10.0 mg of iodine 131 is given to a patient, how much is left after 24 days? The half-life of iodine-131 is 8 days.
1.25mg1.25g10g10mg - 61. Multiple Choice
When an atom _______________ _____________, its electrons can use this energy to move to a higher energy level.
releases energy
absorbs energy
emits radiation
gets rid
- 62. Multiple ChoiceWhat is the basis of a metallic bond?the attraction of neutral metal atoms.the attraction between protons and neutrons.the attraction between positive metal ions and interlocking electrons.the attraction between positive metal ions and free floating electrons.
- 63. Multiple ChoiceN2, Cl2, and O2 are alldiatomic molecules.ionic bonds.of equal mass.solids.
- 64. Multiple ChoiceWhat is the percent by mass of oxygen in MgO?20%40%50%60%
- 65. Multiple Choice
According to the kinetic molecular theory, all collisions between gas molecules are inelastic; all kinetic energy is lost.
True
False
- 66. Multiple Choice
How many mL of 10.8M HCl are required to make 100.0 mL of 3.00M acid?
27.8 mL
.278 mL
2.8 mL
278 mL
- 67. Multiple Choice
How much water must be added to prepare a 0.2M dilute solution KBr? Your stock solution is 100 mL of 1.5M KBr.
175 mL
750 mL
650 mL
13.3 mL
- 68. Multiple Choice
Which is the correct set of acid properties:
sour taste, corrosive, change litmus from red to blue
sour taste, corrosive, change litmus from blue to red
sweet taste, slippery, change litmus from blue to red
sour taste, slippery, change litmus from blue to red
- 69. Multiple Choice
Which of the following statements is true concerning acids and bases?
acids and bases don't react with each other
acids mixed with bases neutralize each other
acids mixed with bases make stronger bases
acids mixed with bases make stronger acids
- 70. Multiple Choice
Is pure water acidic, basic, or neutral?
Acidic
Basic
Neutral
- 71. Multiple Choice
The pH scale is a range from:
1 - 7
0 - 14
1 - 5
1 - 14
- 72. Multiple Choice
If the [H3O+] of a solution is 1 x 10-3 M, the pH is
11
-3
3
1
- 73. Multiple Choice
Oranges have a [H3O+] of 1.7 x 10-2 M. Their pOH is
1.77
12.23
10.91
3.09
- 74. Multiple Choice
Eggs have a pOH of 5.4. Eggs are a(n) __________.
acid
base
neutral
metal
- 75. Multiple Choice
A solution of KOH is 1.0 x 10-5 M. What is the [H+] concentration?
5
9
1.0 x 10-9
1.0 x 10-5
- Answer choicesTagsAnswer choicesTags