CHM 1040: Final 2/4

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  1. Ammonium nitrate can be synthesized by the reaction of ammonia and nitric acid. What is the chemical equation for this reaction?

    A) NH3 + HNO3 --? NH4NO3
    B) N2 + HN --? HN3
    C) NH4NO3 --? NH3 + HNO3
    D) KNO3 + NH3 --? N2H3O2 + KO
    A) NH3 + HNO3 --? NH4NO3
    (this multiple choice question has been scrambled)
  2. Copper dissolves in nitric acid solution to give aqueous
    copper sulfate, nitrogen monoxide gas, and water. Indicate the
    (unbalanced) chemical equation for this reaction.

    A) Cu (s) + H2S(aq) --? CuSO4 (aq) + SO2(g) + H2O (l)
    B) Cu (s) + SO2(g) + H2O(l) --? CuSO4 (aq) + H2SO4(aq)
    C) Cu (s) + HNO3 (aq) --? Cu(NO3)2(aq) + NO (g) + H2O (l)
    D) Cu (s) + HCl (aq) --? CuSO4 (aq) + SO2 (g)
    C) Cu (s) + HNO3 (aq) --? Cu(NO3)2(aq) + NO (g) + H2O (l)
    (this multiple choice question has been scrambled)
  3. Ionic compounds form

    A) mostly between non-metals.
    B) between any two metalloids.
    C) mostly between metals.
    D) mostly between metals and non-metals.
    D) mostly between metals and non-metals.

    The metal gives electrons to a non-metal
    (this multiple choice question has been scrambled)
  4. In a chemical reaction:

    A) products form reactants.
    B) heat is always evolved.
    C) the total number of atoms may change.
    D) gases are usually formed.
    E) reactants are converted to products.
    E) reactants are converted to products.
    (this multiple choice question has been scrambled)
  5. Evidence of chemical reactions is always obvious.

    A) True
    B) False
    B) False

    An observer may be looking for the wrong thing, or in the wrong place (though our examples will generally be obvious)
  6. Dalton's
    atomic theory was eventually successful because it _____ observations
    that were made later, and _______ previous theories.

    A) experimented ... integrated
    B) predicted ... explained
    C) predicted ... destroyed
    D) integrated ... ignored
    B) predicted ... explained
    (this multiple choice question has been scrambled)
  7. What are the coefficients when the following reaction is properly balanced?___O2 (g) + ___CH4 (g) --? ___CO2 (g) + ___H2O (g)

    A) 2 1 1 2
    B) 1 1 1 2
    C) 4 1 1 2
    D) 3 2 2 3
    E) 3/2 1 1 2
    A) 2 1 1 2
    (this multiple choice question has been scrambled)
  8. Sodium-23

    A) is chemically identical to neon-23.
    B) has a mass number of 34.
    C) has an atomic number of 22.
    D) is chemically identical to sodium-22.
    D) is chemically identical to sodium-22.

    As long as Z is the same, they are the same chemical element
    (this multiple choice question has been scrambled)
  9. Give the formula of the compound formed from aluminum and oxygen.

    A) Al3O2
    B) AlO2
    C) Al2O3
    D) Al2O
    E) AlO
    C) Al2O3
    (this multiple choice question has been scrambled)
  10. What is the name of the compound PF5?
    A) phosphorus fluorine
    B) monophosphate
    C) monophosphate pentafluoride
    D) phosphorus pentafluoride
    E) perphosphorus
    D) phosphorus pentafluoride
    (this multiple choice question has been scrambled)
  11. What is the proper name of the compound formed between aluminum and oxygen?

    A) dialuminum oxide
    B) aluminum dioxide
    C) trialuminum oxide
    D) aluminum oxide
    E) dialuminum trioxide
    D) aluminum oxide
    (this multiple choice question has been scrambled)
  12. Which of the following is not a part of Dalton's atomic theory?

    A) Atoms of elements combine to form compounds.
    B) Atoms are indivisible in chemical reactions.
    C) Natural materials are combinations of elements.
    D) All atoms of a given element are identical.
    E) A given compound always has the same relative numbers and types of atoms.
    C) Natural materials are combinations of elements.
    (this multiple choice question has been scrambled)
  13. After a chemical reaction is properly balanced, the coefficients should be ————.

    A) reduced to the smallest set of integers and must give the same number of atoms of each element on both sides of the equation
    B) the same
    C) all less than 5
    D) different from each other
    E) fractions
    A) reduced to the smallest set of integers and must give the same number of atoms of each element on both sides of the equation
    (this multiple choice question has been scrambled)
  14. Which of the following is the formula for periodate?

    A) I-
    B) IO3-
    C) IO2-
    D) IO-
    E) IO4-
    E) IO4-
    (this multiple choice question has been scrambled)
  15. What is the correct name for the compound Na2O?

    A) sodium peroxide
    B) persodium dioxide
    C) sodium oxide
    D) disodium oxide
    E) persodium oxide
    A) sodium peroxide
    (this multiple choice question has been scrambled)
  16. In a chemical reaction,

    A) heat is produced
    B) reactants and products must be in the same phase.
    C) the atoms that are created are called the "products."
    D) the atoms that are created are called the "reactants."
    E) the reactants form the products of the reaction.
    E) the reactants form the products of the reaction.
    (this multiple choice question has been scrambled)
  17. Identify the false statement regarding the periodic table:

    A) The periodic table was first developed by Mendeleev.
    B) The periodic table is predictive.
    C) The periodic table is arranged according to Z.
    D) The periodic table arranges elements in families.
    E) The periodic table arranges families of elements horizontally.
    E) The periodic table arranges families of elements horizontally.

    Families of elements are arranged vertically.
    (this multiple choice question has been scrambled)
  18. Hydrogen peroxide liquid decomposes to form water and oxygen gas. Identify the (unbalanced) chemical reaction.

    A) H2O2 --? H2O + O
    B) HO --? H2O + O2
    C) H2O2 --? H2O + O2
    D) H2O --? H2O + O2
    C) H2O2 --? H2O + O2
    (this multiple choice question has been scrambled)
  19. Which set of statements regarding the nuclear atom is correct?

    A) mp ? mn, charges: p-, e+, n0
    B) mn ? me, charges: p-, e+, n0
    C) mp ? me, charges: p+, e-, n0
    D) mp ? mn, charges: p+, e-, n0
    D) mp ? mn, charges: p+, e-, n0
    (this multiple choice question has been scrambled)
  20. For a given compound, the subscripts in the chemical formula may not change.

    A) True
    B) False
    A) True

    Changing the subscripts changes the compound identity. The law of constant composition tells us this
  21. Which of the following is sulfurous acid?

    A) HNO3
    B) H2SO3
    C) H2SO4
    D) H2S
    E) H2S2O3
    B) H2SO3
  22. The largest single category or grouping of elements in the periodic table is the:

    A) metals.
    B) non-metals.
    C) alkaline earth metals.
    D) halogens.
    E) noble gases.
    A) metals.
    (this multiple choice question has been scrambled)
  23. A typical oxoacid contains oxygen, hydrogen and a(n):

    A) metalloid.
    B) metal.
    C) polyatomic ion.
    D) non-metal.
    D) non-metal.
    (this multiple choice question has been scrambled)
  24. Give the formula of the compound formed from potassium and iodine.

    A) K2I
    B) KI
    C) PI
    D) PIO
    E) PI2
    B) KI
    (this multiple choice question has been scrambled)
  25. When magnesium is dissolved in nitric acid, hydrogen gas is
    evolved, and aqueous magnesium nitrate is formed. Indicate the
    (unbalanced) chemical reaction.

    A) Si(s) + HNO3 (aq) --? H2(g) + Mg(NO3)2 (aq)
    B) Si(s) + HNO3 (aq) --? H2(g) + SiNO3 (aq)
    C) Mg (s) + HNO3 (aq) --? H2(s) + Mg(NO3)2 (s)
    D) Mg (s) + HNO3 (aq) --? H2(g) + Mg(NO3)2 (aq)
    D) Mg (s) + HNO3 (aq) --? H2(g) + Mg(NO3)2 (aq)
    (this multiple choice question has been scrambled)
  26. Which of the following is the formula for acetic acid?

    A) H2CO3
    B) H2AlO3
    C) HCO
    D) HCN
    E) HC2H3O2
    E) HC2H3O2
    (this multiple choice question has been scrambled)
  27. Trace elements

    A) have very small masses.
    B) are present in the body in tiny amounts.
    C) are dangerous.
    D) are used only in medicine.
    E) can be detected with Geiger counters.
    B) are present in the body in tiny amounts.
    (this multiple choice question has been scrambled)
  28. Give the proper name for HI.

    A) hydrogen iodide
    B) hydroiodic acid
    C) monohydride iodide
    D) hydrochloric acid
    E) iodoic acid
    B) hydroiodic acid
    (this multiple choice question has been scrambled)
  29. Ions

    A) only form from metals.
    B) are formed through the gain and loss of electrons.
    C) are not stable.
    D) cause fires when created.
    B) are formed through the gain and loss of electrons.
    (this multiple choice question has been scrambled)
  30. Give the proper formula for potassium sulfate.

    A) PSO3
    B) K2SO
    C) K2SO3
    D) P2SO4
    E) KS2
    B) K2SO
    (this multiple choice question has been scrambled)
  31. Which of the following is not a physical state that may be specified in a chemical equation?

    A) (g)
    B) (s)
    C) (vap)
    D) (aq)
    E) (l)
    C) (vap)
    (this multiple choice question has been scrambled)
  32. A compound that has four atoms of hydrogen, two of oxygen, and two of carbon might be

    A) HC2H3O2
    B) C2H5O3
    C) C4H8O4
    D) CH2O
    A) HC2H3O2
    (this multiple choice question has been scrambled)
  33. Balance the following equation representing the Hall process &; an important synthesis of aluminum.___Al2O3 (s) + ___C(s) --? ____Al(s) + ___CO2 (g)

    A) 4 6 6 5
    B) 2 2 4 3
    C) 1 3 1 3
    D) 2 3 4 3
    D) 2 3 4 3
    (this multiple choice question has been scrambled)
  34. What are the coefficients when the following reaction is properly balanced?___silicon tetraiodide + ___magnesium —? ___silicon + ___magnesium iodide

    A) 1 1 1 1
    B) 1 2 1 2
    C) 1 2 2 2
    D) 2 4 4 2
    E) 2 2 2 2
    B) 1 2 1 2
    (this multiple choice question has been scrambled)
  35. What is the chemical formula of dichloropentoxide?

    A) 2ClO5
    B) ClO5
    C) Cl5O2
    D) Cl2O5

    D) Cl2O5
    (this multiple choice question has been scrambled)
  36. What is the correct formula for the compound copper(II) chloride?

    A) CuCl2
    B) CuCl
    C) Cu2Cl2
    D) Cu2Cl
    A) CuCl2
    (this multiple choice question has been scrambled)
  37. Which statement regarding isotopic symbols is correct?

    A) The mass number is less than Z.
    B) The atomic number is A.
    C) The number of protons is equal to A.
    D) The mass number is larger than Z.
    E) The atomic number is larger than Z.
    D) The mass number is larger than Z.

    A equals Z + the number of neutrons.
    (this multiple choice question has been scrambled)
  38. Give the formula for the compound rubidium hydroxide.

    A) RbOH
    B) RbO2
    C) RbO
    D) RO2
    E) Rb(OH)2
    A) RbOH
    (this multiple choice question has been scrambled)
  39. What is the proper name for the compound Co2O3?

    A) cobalt(II) oxide
    B) tricobalt oxide
    C) cobalt(III) oxide
    D) cobalt oxide
    C) cobalt(III) oxide
    (this multiple choice question has been scrambled)
  40. Which of the following is not evidence of a chemical reaction?

    A) Insoluble solid formation
    B) heat production
    C) color change
    D) boiling water
    E) bubbling due to the formation of a gas
    D) boiling water

    (Although the heat used to boil the water may be produced by a chemical reaction.)
    (this multiple choice question has been scrambled)
  41. What are the coefficients when the following reaction is
    properly balanced?___Iron(II) oxide + ___carbon —? ___iron + ___carbon
    dioxide gas

    A) 4 2 4 2
    B) 2 1 2 1
    C) 2 2 1 3
    D) 1/2 1 1 1
    E) 4 1 1 2
    B) 2 1 2 1
    (this multiple choice question has been scrambled)
  42. Ionic compounds

    A) may be represented by different formulas.
    B) form to give an overall neutral charge.
    C) may have any net charge.
    D) will not dissolve in water.
    B) form to give an overall neutral charge.

    The overall charge on an ionic compound must be zero
    (this multiple choice question has been scrambled)
  43. Titanium (IV) bromide reacts with hydrogen gas to produce titanium metal and hydrogen bromide gas. Which is the correct balanced equation for this reaction?

    A) TiBr2 (aq) + H2 (g) --? Ti (s) + 2HBr (g)
    B) TiBr4 (aq) + 2H2 (g) --? Ti (s) + 4HBr (g)
    C) TiBr2 (aq) + 2H2 (g) --? 2Ti (s) + 2HBr (g)
    D) TiBr (aq) + H2 (g) --? Ti (s) + H2Br (g)
    B) TiBr4 (aq) + 2H2 (g) --? Ti (s) + 4HBr (g)
    (this multiple choice question has been scrambled)
  44. The elemental symbol for potassium is

    A) S
    B) K
    C) F
    D) Ka
    E) P
    B) K
    (this multiple choice question has been scrambled)
  45. What is wrong with the compound KrO2?

    A) Krypton forms compounds with metals only.
    B) Krypton does not form compounds.
    C) Should be KrO
    D) Should be KrO4
    E) Should be Kr2O
    B) Krypton does not form compounds.

    Noble gases are mostly unreactive
    (this multiple choice question has been scrambled)
  46. Ernest Rutherford

    A) opposed atomic theory.
    B) theorized the nuclear atom.
    C) worked with Albert Einstein.
    D) was responsible for the plum-pudding model.
    E) proved the existence of the electron.
    B) theorized the nuclear atom.
    (this multiple choice question has been scrambled)
  47. Atoms are mostly empty space.

    A) True
    B) False
    A) True

    The mass is centered at the very small nucleus. The electrons take up most of the space.
  48. What is the formula for the compound sulfur dioxide?

    A) SO2
    B) SO
    C) S2O
    D) S2O2
    E) S2O3
    A) SO2
  49. Solid sodium metal reacts explosively with chlorine gas yielding sodium chloride powder. Which is the correct balanced equation for this reaction?

    A) 2Na(s) + Cl2(g) --? 2NaCl(s)
    B) Na2(s) + Cl2(g) --? 2NaCl(s)
    C) Na(s) + Cl(g) --? NaCl(s)
    D) Na(s) + Cl2(g) --? NaCl(s)
    A) 2Na(s) + Cl2(g) --? 2NaCl(s)
    (this multiple choice question has been scrambled)
  50. What are the coefficients when the following reaction is
    properly balanced?___ sodium carbonate +___sulfur + ___sulfur dioxide
    gas —? ___carbon dioxide gas + ___sodium thiosulfate

    A) 1 2 1 2 2
    B) 2 1 1 1 1
    C) 1 1 2 1 1
    D) 1 1 1 1 1
    D) 1 1 1 1 1
    (this multiple choice question has been scrambled)
  51. Ethanol (C2H5OH) burns in oxygen to form carbon dioxide gas and water vapor. Identify the (unbalanced) chemical equation.

    A) C2H5OH + O2 --? CO2 + H2O
    B) C2H5OH --? CO + H2O
    C) C2H5OH + H2O --? O2 + CO2
    D) C2H5OH --? CO2 + H2O
    A) C2H5OH + O2 --? CO2 + H2O
    (this multiple choice question has been scrambled)
  52. The nuclear atom

    A) has electrons centered at the nucleus.
    B) failed to predict observed behavior.
    C) describes the nuclear chain reaction.
    D) consists of a small, dense nucleus and electrons.
    E) consists of a small, dense nucleus and protons.
    D) consists of a small, dense nucleus and electrons.

    The nucleus contains most of the mass
    (this multiple choice question has been scrambled)
  53. Which family in the periodic table is found naturally as diatomic molecules?

    A) The non-metals.
    B) The halogens.
    C) The noble gases.
    D) The transition metals.
    B) The halogens.
    (this multiple choice question has been scrambled)
  54. Which is a correct chemical formula?

    A) H2S
    B) C1/2O4
    C) HHHC3
    D) H1.5O3
    A) H2S
    (this multiple choice question has been scrambled)
  55. What are the coefficients when the following reaction is properly balanced?___Al (s) + ___H2SO4(aq) --? ___Al2(SO4)3 (aq) + ___H2(g)

    A) 2 2 3 2
    B) 2 3 1 3
    C) 4 6 2 6
    D) 1 3 1 3
    E) 1 1 1 1
    B) 2 3 1 3
    (this multiple choice question has been scrambled)
  56. Which of the following is nitrite?

    A) NO3-
    B) NH4+
    C) NO2-
    D) N3-
    E) N2O2
    C) NO2-
    (this multiple choice question has been scrambled)
  57. Give the formula for the compound chromium(V) nitrate.

    A) Cr5NO3
    B) Cr5NO2
    C) CrNO3
    D) 5CrNO3
    E) CrO3)5
    E) CrO3)5
    (this multiple choice question has been scrambled)
  58. Names from old languages determine some of the elemental symbols.

    A) True
    B) False
    A) True
  59. What are the coefficients when the following reaction is properly balanced?___NO (g) + ___Cl2 (g) --? ___NOCl (g)

    A) 1 1 2
    B) 1 2 3
    C) 2 1 2
    D) 3 1 2
    C) 2 1 2
    (this multiple choice question has been scrambled)
Author:
kieu
ID:
82138
Card Set:
CHM 1040: Final 2/4
Updated:
2011-04-27 04:20:05
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CHM Final
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CHM 1040: Final 2/4
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