Chemistry Unit 1 Exam

42 Questions

Settings
Please wait...
Chemistry Quizzes & Trivia

This is in preparation of the Chemistry Final Exam through Northwestern. . It's just Unit 1, but asks very detailed questions, so make sure you studied! Enjoy!


Questions and Answers
  • 1. 
    • A. 

      The branch of science concerned with the nature and properties of matter and energy

    • B. 

      The study of living organisms, divided into many specialized fields.

    • C. 

      The science that deals with materials of the universe and the changes that these materials undergo

    • D. 

      The intellectual and practical activity encompassing the systematic study of the structure and behavior of the physical and natural phenomenons.

  • 2. 
    Wood burning in air, forming water, carbon dioxide, and other substances is a form of chemistry. 
    • A. 

      True

    • B. 

      False

  • 3. 
    What are the steps to the scientific method? 
  • 4. 
    What is a theory? 
    • A. 

      Something that is witnessed and can be recorded.

    • B. 

      An interpretation, or a possible explanation of why nature behaves in a particular way.

    • C. 

      A statement that summarizes generally observed behavior.

    • D. 

      A possible explanation for an observation.

  • 5. 
    What is matter? 
    • A. 

      Something that has mass and occupies space.

    • B. 

      Fundamental unit of which elements are made.

    • C. 

      Substances that contain only one type of atom.

    • D. 

      Substances that are made by bonding atoms together in a specific way.

  • 6. 
    What are compounds? What are elements? 
  • 7. 
    Check the 3 different types of states of matter. 
    • A. 

      Solid

    • B. 

      Water

    • C. 

      Liquid

    • D. 

      Blood

    • E. 

      Gas

  • 8. 
    A chemical property is a characteristic that describes the ability of a subtsance to change to a different substance. 
    • A. 

      True

    • B. 

      False

  • 9. 
  • 10. 
    What is a mixture? 
    • A. 

      A substance without variable composition

    • B. 

      A substance with variable composition

  • 11. 
    An alloy is a mixture of elements that have a metallic property. 
    • A. 

      True

    • B. 

      False

  • 12. 
    A pure substance is a...
    • A. 

      Pure element or pure compound

    • B. 

      A mixture of elements

    • C. 

      A mixture of atoms

    • D. 

      Nitrogen.

  • 13. 
    What is the difference between a homogeneous and a heterogeneous mixture? 
  • 14. 
    What is filtration? 
    • A. 

      A separation process that depends on the boiling points of the substances

    • B. 

      An agent that is used to distillate water

    • C. 

      Separation of a solid from a liquid by using filter paper

    • D. 

      Desalination

  • 15. 
    What is the element symbol for fluorine?
    • A. 

      Fl

    • B. 

      Fo

    • C. 

      Fe

    • D. 

      F

  • 16. 
    What is the law of constant composition?
    • A. 

      A given compound always contains elements in exactly the same proportion by mass

    • B. 

      The fact that a substance made of two or more different elements joined together in a specific way is called a compound

    • C. 

      Elements are made up of tiny particles called atoms

  • 17. 
    J.J Thompson found what neutrons were. 
    • A. 

      True

    • B. 

      False

  • 18. 
    • A. 

      The number of protons in the nucleus of a given atom

    • B. 

      The total number of protons and neutrons in the nucleus of a given atom

    • C. 

      Atoms with the same number of protons but different number of neutrons

    • D. 

      The number of electrons in the nucleus of a given atom

  • 19. 
    In the periodic table, the following groups exist
    • A. 

      Alkaline

    • B. 

      Alkali

    • C. 

      Helenogens

    • D. 

      Halogens

    • E. 

      Ignoble Gases

    • F. 

      Noble Gases

  • 20. 
    What properties of elements are considered when arranging elements in the periodic table? 
  • 21. 
    The four physical properties of the metals include...
    • A. 

      Efficient conduction of heat and electricity

    • B. 

      Ability to be eaten (edible)

    • C. 

      Malleability (can be hammered into thin sheets)

    • D. 

      Ability to change in state of matter

    • E. 

      Lacking shininess (luster)

    • F. 

      A lustrous appearance

    • G. 

      Ductility (can be pulled into thin wires)

  • 22. 
    A diatomic molecule a molecule that consists of three atoms. 
    • A. 

      True

    • B. 

      False

  • 23. 
    Describe what cations, anions, and ions are in general. 
  • 24. 
    Chemical compounds must have a ______ charge
    • A. 

      Positive

    • B. 

      Negative

    • C. 

      Neutral

  • 25. 
    A binary ionic compound is a two element compound consisting of an anion and a cation. 
    • A. 

      True

    • B. 

      False

  • 26. 
    What is a scientific notation? 
    • A. 

      Expresses as a product of a number between 1 and 10 and the approximate power of 10.

    • B. 

      It is the notation of science

  • 27. 
    Units are the part of the measurement telling us the scale being used
    • A. 

      True

    • B. 

      False

  • 28. 
    What are the different ways to measure length, volume, and mass
  • 29. 
    Significant figures are the certain digits and the last uncertain digit of a measurement
    • A. 

      True

    • B. 

      False

  • 30. 
    Conversion factors are 
    • A. 

      The relationship between inches and centimeters

    • B. 

      The proportion that is used to measure the ratios of food

    • C. 

      A ratio used to convert from one unit to another

    • D. 

      The process of using conversion factors to change from one unit to another

  • 31. 
    The absolute scale of temperature is
    • A. 

      Kelvin scale

    • B. 

      Celsius scale

    • C. 

      Fahrenheit scale

  • 32. 
    In order to convert from celsius to kelvin degrees, one must add 200 degrees to the celcius degree. 
    • A. 

      True

    • B. 

      False

  • 33. 
    Describe what density is
  • 34. 
    What is the chemical formula of the phosphate ion?
  • 35. 
    Chemical formula for hydroxide ion.
  • 36. 
    Cesium oxide
  • 37. 
    Barium oxide
  • 38. 
    What is the chemical formula for scandium oxide?
  • 39. 
    What is the chemical formula for the nitrite ion?
  • 40. 
    What is the formula for a carbonate ion?
  • 41. 
    What is the chemical formula for the nitrate ion?