Chemistry Chapter 5 Quiz
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Questions and Answers

What is the chemical formula for calcium hydroxide?

  • CaO
  • CaSO4
  • CaHCO3
  • Ca(OH)2 (correct)

    • Which of the following compounds contains water of hydration?

  • Calcium sulfate
  • Sodium chloride
  • Potassium iodide
  • Magnesium sulfate hepta hydrate (correct)

    • Which of the following is a strong acid?

  • Acetic acid
  • Hydrochloric acid (correct)
  • Calcium hydrogen carbonate
  • Carbonic acid

    • What is the balanced equation for the reaction of potassium and chlorine gas?

    <p>2 K + Cl2 → 2 KCl</p> Signup and view all the answers

    Which of the following compounds is a type of carbonate?

    <p>Sodium carbonate</p> Signup and view all the answers

    What is the chemical formula for magnesium oxide?

    <p>MgO</p> Signup and view all the answers

    What does the arrow in a chemical equation represent?

    <p>Produces</p> Signup and view all the answers

    What product is formed when sodium chloride decomposes?

    <p>Both sodium metal and chlorine gas</p> Signup and view all the answers

    What is necessary for an equation to be balanced?

    <p>The number of atoms must be equal on both sides</p> Signup and view all the answers

    Which of the following is an example of an inorganic salt?

    <p>Sodium thiosulfate pentahydrate</p> Signup and view all the answers

    Which type of reaction involves one element replacing another in a compound?

    <p>Single Replacement</p> Signup and view all the answers

    In which type of reaction do cations and anions exchange partners to form new compounds?

    <p>Double Replacement</p> Signup and view all the answers

    What must always be checked at the end of balancing a chemical equation?

    <p>The balancing of polyatomic ions</p> Signup and view all the answers

    Which type of reaction produces the most common oxide by adding oxygen?

    <p>Combustion</p> Signup and view all the answers

    What is the first step in balancing a chemical equation?

    <p>Write out the formulas for all compounds</p> Signup and view all the answers

    What is indicated by the plus sign in a chemical equation?

    <p>Reactants react with</p> Signup and view all the answers

    What is the correct conversion of 250 μm to mm?

    <p>0.250 mm</p> Signup and view all the answers

    What is the total magnification when the ocular lens is 10x and the objective lens is 4x?

    <p>40x</p> Signup and view all the answers

    If the field of view (FOV) at 40x is 0.55 mm, what is the FOV at 300x?

    <p>73 μm</p> Signup and view all the answers

    Which cell structure is responsible for producing ATP?

    <p>Mitochondria</p> Signup and view all the answers

    Which of the following structures is responsible for packaging substances for secretion?

    <p>Golgi Body</p> Signup and view all the answers

    What structure is primarily involved in the intracellular transport of materials?

    <p>Vesicles</p> Signup and view all the answers

    Which organelle contains DNA?

    <p>Nucleus</p> Signup and view all the answers

    Which structure converts solar energy to chemical energy?

    <p>Chloroplast</p> Signup and view all the answers

    How long will it take for Gretzky's puck to reach the net when shot at 90 km/h from 15 m away?

    <p>0.60 s</p> Signup and view all the answers

    What is a key characteristic of prokaryotic cells?

    <p>Genetic material is in the cytoplasm</p> Signup and view all the answers

    Which of the following organelles is unique to plant cells?

    <p>Chloroplasts</p> Signup and view all the answers

    What is the shortest time it would take a Sun Spider to run 3.6 m at 16 km/h?

    <p>0.23 s</p> Signup and view all the answers

    Which statement about a graph of position versus time is not true?

    <p>An upward curving line indicates constant speed.</p> Signup and view all the answers

    What is the primary advantage of using a transmission electron microscope (TEM)?

    <p>Provides very high magnification</p> Signup and view all the answers

    What force is needed to lift a 4.54 kg bag of sugar at constant speed?

    <p>44.5 N</p> Signup and view all the answers

    Which statement about eukaryotic cells is true?

    <p>They have organized organelles in membranes.</p> Signup and view all the answers

    What is a disadvantage of using a scanning electron microscope (SEM)?

    <p>Cannot view internal structures</p> Signup and view all the answers

    The weight of an object is defined as which of the following?

    <p>The force of gravity acting on its mass</p> Signup and view all the answers

    Which component is NOT found in animal cells?

    <p>Cell wall</p> Signup and view all the answers

    What is the work done when lifting a box weighing 67.8 N up 3.3 m?

    <p>224 J</p> Signup and view all the answers

    Which of the following units is equivalent to one joule?

    <p>All of the above</p> Signup and view all the answers

    In terms of resolving power, which microscope provides the highest detail?

    <p>Transmission electron microscope</p> Signup and view all the answers

    In a velocity-time graph, an upward slope indicates what about the object's motion?

    <p>It is accelerating.</p> Signup and view all the answers

    What distinguishes a plasmid from a typical chromosomal structure?

    <p>Plasmids often exist as circular DNA.</p> Signup and view all the answers

    Which of the following statements accurately describes ribosomes?

    <p>They are involved in protein synthesis.</p> Signup and view all the answers

    What is the nature of the image produced by a light microscope?

    <p>Colored and two-dimensional</p> Signup and view all the answers

    What does it mean when a motor is stated to be 73% efficient?

    <p>73% of the input energy is converted to kinetic energy.</p> Signup and view all the answers

    Which statement about work and kinetic energy is not true?

    <p>A force doing work always results in a gain of kinetic energy.</p> Signup and view all the answers

    For every 100 J of energy supplied to a motor with 73% efficiency, how much energy is wasted?

    <p>27 J</p> Signup and view all the answers

    Which statement about the energy in a pendulum is not true?

    <p>At the bottom of the swing, all energy is gravitational potential energy.</p> Signup and view all the answers

    What is the useful output energy of a motor?

    <p>Kinetic energy</p> Signup and view all the answers

    The process of photosynthesis results in an increase in what type of energy?

    <p>Potential energy</p> Signup and view all the answers

    What is produced as a byproduct of photosynthesis?

    <p>Oxygen</p> Signup and view all the answers

    Which of the following does not describe the energy transformation in an electric motor?

    <p>Heat to electrical energy</p> Signup and view all the answers

    Study Notes

    Chemistry

    • WHMIS - Workplace Hazardous Materials Information System; symbols used to identify dangerous materials.
    • Classifying Matter - Matter is anything with mass and volume. Matter can be a mixture or a pure substance.
    • Dalton's Atomic Theory (12):
      • All matter is made up of small particles called atoms.
      • Atoms cannot be created, destroyed, or divided into smaller parts.
      • All atoms of the same element have the same mass; different elements have different masses.
      • Putting two elements together creates a compound.
      • Chemical reactions rearrange the grouping of atoms, but atoms themselves do not change.
    • J.J. Thomson (15):
      • Atoms are made up of smaller particles.
      • Atoms have negative electrons.
      • Viewed atom as a raisin bun (electrons embedded within the atom).
    • Rutherford (16):
      • Alpha particle streams showed positively charged protons and neutral neutrons within the atom’s nucleus.
      • Atoms have a volume of empty space surrounding the nucleus.
      • Atomic model is like a solar system.
    • Bohr (19):
      • Electrons occupy specific energy levels within the atom.
    • Working Model of the Atom (22):
      • Proton: Positive charge (+1), symbolized by p.
      • Neutron: Neutral charge, symbolized by n.
      • Electron: Negative charge (-1), symbolized by e.
    • Nuclear Notation (22):
      • Atomic Number = number of protons
      • Mass Number = number of protons + neutrons
      • Number of neutrons = mass number - Atomic number
    • Periodic Table (25):
      • Organizes elements according to properties.
      • Elements in periods (horizontal rows) have the same number of energy levels for electrons.
      • Elements in groups (vertical columns) have similar properties and number of valence electrons.
    • Formation of Ions (29):
      • Cations: Positively charged ions (metals lose electrons).
      • Anions: Negatively charged ions (non-metals gain electrons).
    • Naming Ions (44):
      • The compound formed is electrically neutral.
      • The first element in the name is the metal, the second element is named by adding "-ide" to the non-metal's name.
    • Formulas (45):
      • Use ion charges to determine the number of each ion needed for neutralization.
    • Molecular Compounds (31):
      • Groups of atoms (molecules) not ions that contain only non-metals.
      • Many elements exist as diatomic molecules (remember the Special Seven: O2, H2, N2, F2, Cl2, Br2, I2 & P4, S8)
    • Naming Molecular Compounds (43):
      • First element name is the one which is farther left in the periodic table.
      • Prefixes are used to indicate the number of atoms of each element present (mono, di, tri, tetra, penta...).
    • Chemical Reactions (85):
      • Reactions involve changes in substances (reactants to products).
      • Substances that react are called reactants, substances formed are called products.
      • Reactions give off or require energy.
      • Evidence for reactions is a change in temperature, states, and odor.
    • Writing Reactions (94):
      • Balanced equations demonstrate conservation of mass
      • Reactions are categorized into types.
    • Atoms and Ions Review (pg 5, pg 7)
      • Review of atoms and ions with examples and naming rules.

    Other Subjects

    (The following sections are not completely Chemistry)

    • Biology (pg 9):
      • Cells are fundamental units of life.
      • All organisms are composed of one or more cells.
      • Prokaryotic cells lack a nucleus and membrane-bound organelles.
      • Eukaryotic cells contain a nucleus and membrane-bound organelles.
    • The Microscope (pg 10)
      • Different types of microscopes (light, transmission electron, scanning electron) have varying degrees of magnification, resolution and image types.
    • Conversion of units, fields of view (pg 12)
      • Conversion of units and analysis of quantities using data for problems.
    • Cell Structure (pg 13)
      • Identification of cell structures and functions.
    • Other Biological concepts (pg 14, pg 15, pg 16, pg 17)
      • Biological concepts and related problems.
    • Physics (pages 18, 19, 20, 21, 22, 23, 24)
      • Various physics concepts and problems ranging from conversions, sig figs, vectors, quantitites to specific physics applications.

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