Chemistry Mid-term Exam Practice Test

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Chemistry Mid-term Exam Practice Test

In chemistry classes, we get to discuss a lot when it comes to liquid and how to form a solution. With the midterms just around the corner, it is becoming more critical to ensure that you are up to date with all that has been covered in class so far. Below is a chemistry mid-term exam practice test designed to refresh your memory. Give it a shot!


Questions and Answers
  • 1. 
    • A. 

      2000kg

    • B. 

      20000kg

    • C. 

      0.20kg

    • D. 

      0.020kg

  • 2. 
    Convert 23ml to liters.
    • A. 

      0.023L

    • B. 

      230L

    • C. 

      230000L

    • D. 

      23000L

  • 3. 
    Convert 18km to mm.
    • A. 

      18000mm

    • B. 

      0.0018mm

    • C. 

      18000000mm

    • D. 

      1.80mm

  • 4. 
    Convert 88kg to mg.
    • A. 

      8.8mg

    • B. 

      88000mg

    • C. 

      0.0000088mg

    • D. 

      88000000mg

  • 5. 
    Convert 23.6cm to mm.
    • A. 

      2.36mm

    • B. 

      236mm

    • C. 

      0.236mm

    • D. 

      0.0236mm

  • 6. 
    Define matter:
    • A. 

      The smallest particle of an element

    • B. 

      The smallest particles on earth

    • C. 

      Anything that has mass and occupies space

    • D. 

      A positively charge particle

  • 7. 
    • A. 

      Protons, neutrons, and electrons

    • B. 

      Metals, non-metals, and metalloids

    • C. 

      Solid, liqui, and gas

    • D. 

      Freezing, melting, and evaporation

  • 8. 
    What instruments do we use to measure volume?
    • A. 

      Thermometer

    • B. 

      Graduated cylinder

    • C. 

      Scale

    • D. 

      Ruler

  • 9. 
    What instruments do we use to measure the mass:
    • A. 

      Graduated cylinder

    • B. 

      Thermometer

    • C. 

      Beaker

    • D. 

      Scale

  • 10. 
    What instruments do we use to measure density?
    • A. 

      Scale and thermometer

    • B. 

      Scale and stop watch

    • C. 

      Graduated cylinder and ruler

    • D. 

      Graduated cylinder and scale

  • 11. 
    What SI unit is used to measure volume
    • A. 

      Grams

    • B. 

      Kilometer

    • C. 

      Liters

    • D. 

      Degree celcius

  • 12. 
    Properties that cannot be observed with the five senses are called:
    • A. 

      Sub-microscopic properties

    • B. 

      Macroscopic properties

    • C. 

      Physical properties

    • D. 

      Biological properties

  • 13. 
    A substance consisting of two elements chemically combined is known as:
    • A. 

      Mixture

    • B. 

      Solution

    • C. 

      Element

    • D. 

      Compound

  • 14. 
    A mixture that separate into two visible phases is known as:
    • A. 

      Solution

    • B. 

      Heterogeneous mixture

    • C. 

      Homogeousmixture

    • D. 

      Compound

  • 15. 
    A positive charge particle found in the nucleus is called:
    • A. 

      Neutron

    • B. 

      Proton

    • C. 

      Electron

    • D. 

      Atom

  • 16. 
    A change from liquid to solid is called:
    • A. 

      Melting

    • B. 

      Boiling

    • C. 

      Freezing

    • D. 

      Condensation

  • 17. 
    A change from liquid to gas is known as:
    • A. 

      Condensation

    • B. 

      Melting

    • C. 

      Sublimation

    • D. 

      Evaporation

  • 18. 
    A change from gas to liquid is called:
    • A. 

      Sublimation

    • B. 

      Evaporation

    • C. 

      Freezing

    • D. 

      Condensation

  • 19. 
    A mixture of sand and iron particles can be separated by:
    • A. 

      Distillation

    • B. 

      Magnetism

    • C. 

      Decantation

    • D. 

      Filtration

  • 20. 
    • A. 

      condensation

    • B. 

      Filtration

    • C. 

      Crystalization

    • D. 

      Distillation

  • 21. 
    • A. 

      Filtration

    • B. 

      Evaporation

    • C. 

      Distillation

    • D. 

      Crystalization

  • 22. 
    A mixture of peroxide and water can be separated by:
    • A. 

      Evaporation

    • B. 

      Sublimation

    • C. 

      Decantation

    • D. 

      Distillation

  • 23. 
    Burning wood is an example of:
    • A. 

      Physical change

    • B. 

      Chemical change

  • 24. 
    Baking cake is classified as:
    • A. 

      Physical change

    • B. 

      Chemical change

  • 25. 
    • A. 

      Physical change

    • B. 

      Chemical change

  • 26. 
    Dissolving salt in water is classified as:
    • A. 

      Physical change

    • B. 

      Chemical change

  • 27. 
    Breaking class is classified as:
    • A. 

      Physical change

    • B. 

      Chemical change

  • 28. 
    Rusting is classified as:
    • A. 

      Physical change

    • B. 

      Chemical change

  • 29. 
    • A. 

      Spaced out and free to slide over each other

    • B. 

      Very spaced out and free to move from one ion to another

    • C. 

      Packed together and can only vibrate

    • D. 

      None of the above

  • 30. 
    Water is an example of:
    • A. 

      Compound

    • B. 

      Element

    • C. 

      Atom

    • D. 

      Mixture

  • 31. 
    • A. 

      Horizontal rows

    • B. 

      Diagonal rows

    • C. 

      Vertical columns

    • D. 

      None of the above

  • 32. 
    Period go from:
    • A. 

      Top to bottom

    • B. 

      Left to right

  • 33. 
    The symbol of magnesium is:
    • A. 

      Mn

    • B. 

      M

    • C. 

      Mo

    • D. 

      Mg

  • 34. 
    The symbol of copper is:
    • A. 

      Co

    • B. 

      Cu

    • C. 

      C

    • D. 

      Cp

  • 35. 
    What is the name of the element with symbol Sr:
    • A. 

      Sodium

    • B. 

      Silicon

    • C. 

      Scandium

    • D. 

      Strontium

  • 36. 
    In what period does iodine belong to:
    • A. 

      5

    • B. 

      4

    • C. 

      3

    • D. 

      2

    • E. 

      1

  • 37. 
    An example of a transition element is:
    • A. 

      Sodium

    • B. 

      Scandium

    • C. 

      Aluminum

    • D. 

      Argon

  • 38. 
    An example of alkali metal is:
    • A. 

      K

    • B. 

      Ca

    • C. 

      P

    • D. 

      Cl

    • E. 

      Au

  • 39. 
    An example of a noble gas is:
    • A. 

      N

    • B. 

      Na

    • C. 

      Ne

    • D. 

      No

  • 40. 
    An example of a hallogen is:
    • A. 

      Ca

    • B. 

      Co

    • C. 

      Br

    • D. 

      S

  • 41. 
    The electron configuration of phosphorus is:
    • A. 

      2,8,1

    • B. 

      2,8,4

    • C. 

      2,8,7

    • D. 

      2,8,5

  • 42. 
    Electron in the outer shell is called:
    • A. 

      Bonding electron

    • B. 

      Transferred electron

    • C. 

      Valence electron

    • D. 

      All of the above

  • 43. 
    How many valence electrons are present in an oxygen atom:
    • A. 

      4

    • B. 

      5

    • C. 

      6

    • D. 

      7

    • E. 

      8

  • 44. 
    Which of the following pair belong in the same group:
    • A. 

      Na and Ca

    • B. 

      Si and Al

    • C. 

      C, Ge

    • D. 

      S, Cl

  • 45. 
    Where are the most active metals located?
    • A. 

      Upper right hand side

    • B. 

      Bottom left hand side

    • C. 

      Upper lefthand side

    • D. 

      Bottom right hand side

  • 46. 
    • A. 

      Increases

    • B. 

      Decreases

    • C. 

      Stay thesame

  • 47. 
    50. As you travel down a group, the atomic size:
    • A. 

      Increases

    • B. 

      Decreases

    • C. 

      Stay the same

  • 48. 
    Elements within a group have a similar number of:
    • A. 

      Shells

    • B. 

      Electrons

    • C. 

      Valence electrons

    • D. 

      Atomic mass

  • 49. 
    Elements across a period have the same number of:
    • A. 

      Shells

    • B. 

      Valence electrons

    • C. 

      Atomic mass

    • D. 

      Protons

  • 50. 
    An element with both metallic and nonmetallic properties is called:
    • A. 

      Transition element

    • B. 

      Noble gas

    • C. 

      Very reactive element

    • D. 

      Metalloid

  • 51. 
    Who discovered the electron?
    • A. 

      Lavoisier

    • B. 

      JJ Thonsom

    • C. 

      Rutherford

    • D. 

      Neil Bohr

  • 52. 
    The atomic number of an element is the same as:
    • A. 

      Number of neutrons

    • B. 

      Atomic mass

    • C. 

      Number of protons

    • D. 

      Mass number

  • 53. 
    To get the atomic mass, we sum up the numbers of:
    • A. 

      Protons and electrons

    • B. 

      Electrons and neutrons

    • C. 

      Protons and neutrons

    • D. 

      Atomic number and number of protons

  • 54. 
    What kind of charge does the neutron have?
    • A. 

      Positive

    • B. 

      Neutral

    • C. 

      Negative

    • D. 

      None of the above

  • 55. 
    • A. 

      Ca

    • B. 

      Au

    • C. 

      Kr

    • D. 

      N

  • 56. 
    Which of the following elements will most likely not participate in bonding:
    • A. 

      Si

    • B. 

      Sr

    • C. 

      Xe

    • D. 

      K

  • 57. 
    An atom contains 11 protons, 11 electrons, and 12 neutrons. What is the mass number?
    • A. 

      11

    • B. 

      12

    • C. 

      23

  • 58. 
    The Octet rule states that:
    • A. 

      Elements become stable by having 8 electrons

    • B. 

      Elements become stable by having 8 valence electrons

    • C. 

      Same number of protons and electrons

    • D. 

      Conserving electrons

  • 59. 
    Covalent compounds are formed by:
    • A. 

      Transfer of electrons

    • B. 

      Gaining electrons

    • C. 

      Losing electrons

    • D. 

      Sharing electrons

  • 60. 
    • A. 

      Covalent compound

    • B. 

      Ionic compound

  • 61. 
    What compounds will most likely conduct electricity in the liquid form? 
    • A. 

      Covalent compounds

    • B. 

      Ionic compounds

  • 62. 
    What compounds have lower melting and boiling points?
    • A. 

      Covalent compounds

    • B. 

      Ionic compounds

  • 63. 
    Which of the substances below is not a compound?
    • A. 

      Sugar

    • B. 

      Water

    • C. 

      Chlorine

    • D. 

      Carbon dioxide

  • 64. 
     ionization is the process where atoms:
    • A. 

      Share electrons

    • B. 

      Form polar molecules

    • C. 

      Gain or lose electrons

    • D. 

      Split into simpler particles

  • 65. 
    Why do elements form compounds?
    • A. 

      To form new compounds

    • B. 

      To become stable like the noble gases

    • C. 

      To become unstable

    • D. 

      To give away electrons