Download Assignment 19APS2ND

Name: ____________________________________
1. When the equation: __Fe2 O3 (s) + __CO(g) → __Fe(l) +
__CO2 (g) is correctly balanced using the smallest whole
numbers, the coefficient of Fe(l) is
A. 1
B. 2
C. 3
D. 4
2. More than two-thirds of the elements of the Periodic Table
are classified as
A. metalloids
B. metals
C. nonmetals
D. noble gases
8. Which pair must represent atoms of the same element?
A. and B. and C. D. and and 9. The correct electron dot formula for hydrogen chloride is
A. B. C. D. 3. The elements of the Periodic Table are arranged in horizontal
rows according to each successive element's greater
A. atomic mass
B. atomic radius
C. number of protons
D. number of neutrons
4. Given the equation: __Ca 2+ (aq) + __PO4 3− (aq) →
__Ca3 (PO4 )2 (s)
When the equation is correctly balanced, the sum of the total
charge of the reactants is
A. B. C. D. 0
+2
−3
+6
5. Which halogen has the least attraction for electrons?
A. F
B. Cl
C. Br
D. I
6. How many protons are in the nucleus of an atom of
beryllium?
A. 5
B. 2
C. 9
D. 4
7. All isotopes of a given element must have the same
A. atomic mass
B. atomic number
C. mass number
D. number of neutrons
15. What is the gram formula mass of Ca3 (PO4 )2 ?
A. B. C. D. 135 g/mol
215 g/mol
278 g/mol
310. g/mol
10. Most nonmetals have the properties of
A. high ionization energy and poor electrical conductivity
B. high ionization energy and good electrical conductivity
C. low ionization energy and poor electrical conductivity
D. low ionization energy and good electrical conductivity
11. If an equation is balanced properly, both sides of the
equation must have the same number of
A. atoms
B. coefficients
C. molecules
D. moles of molecules
12. Which formula represents a substance that contains
covalent bonds?
A. LiCl
B. CaCl2
C. K2 O
D. CO2
13. The metalloids that are included in Group 15 are antimony
(Sb) and
A. N
B. P
C. A s
D. Bi
14. Which formula represents a compound that is formed
primarily by sharing electrons?
A. KCl
B. CaCl2
C. CrCl3
D. CCl4
22. The atomic number of any atom is equal to the number of
A. neutrons in the atom, only
B. protons in the atom, only
C. neutrons plus protons in the atoms
D. protons plus electrons in the atom
16. When an atom of chlorine forms an ionic bond with an
atom of sodium, the atom of chlorine
A. loses an electron
B. loses a proton
C. becomes an ion with a smaller radius than the atom of
chlorine
D. becomes an ion with a larger radius than the atom of
chlorine
17. When metals form ions, they tend to do so by
A. losing electrons and forming positive ions
B. losing electrons and forming negative ions
C. gaining electrons and forming positive ions
D. gaining electrons and forming negative ions
18. What is the gram formula mass of K2 CO3 ?
A. B. C. D. 138 g
106 g
99 g
67 g
19. When the equation
__C8 H16 + __O2 → __CO2 + __H2 O is correctly balanced using the smallest whole number
coefficient, the coefficient of O2 is
A. B. C. D. 1
8
12
16
20. Within Period 4 of the Periodic Table, which of the
following groups contains the element with the highest
electronegativity?
A. 1 (IA)
B. 2 (IIA)
C. 15 (VA)
D. 17 (VIIA)
21. Which term refers to the region of an atom where an
electron is most likely to be found?
A. orbital
B. orbit
C. quantum
D. spectrum
23. Which element is an active nonmetal?
A. neon
B. oxygen
C. zinc
D. chromium
24. The formula for calcium cyanide is
A. CaCN2
B. CaSCN2
C. Ca(CN)2
D. Ca(SCN)2
25. Given the unbalanced equation: ___Al + ___CuSO4 → ___Al2 (SO4 )3 + ___Cu
When the equation is balanced using the smallest wholenumber coefficients, what is the coefficient of Al?
A. 1
B. 2
C. 3
D. 4
26. An atom in the ground state contains 8 valence electrons.
This atom is classified as a
A. metal
B. semimetal
C. noble gas
D. halogen
27. Which element can form a chloride with a general formula
of MCl2 or MCl3 ?
A. B. C. D. Fe
Al
Mg
Zn
28. Given the equation: __FeCl2 + __Na2 CO3 → __FeCO3 +
__NaCl
When the equation is correctly balanced using the smallest
whole numbers, the coefficient of NaCl is
A. B. C. D. 6
2
3
4
29. Given the unbalanced equation: What is the coefficient of O2 when the equation is balanced
correctly using the smallest whole-number coefficients?
A. B. C. D. 1
2
3
4
30. In a sample of the element potassium, each atom has
A. 19 protons
B. 20 neutrons
C. 39 protons and neutrons
D. 39 neutrons
31. Which substance is composed of atoms that all have the
same atomic number?
A. magnesium
B. methane
C. ethane
D. ethene
32. An ion with 5 protons, 6 neutrons, and a charge of 3+ has
an atomic number of
A. 5
B. 6
C. 8
D. 11
33. To which group do the alkaline earth metals belong?
A. 1
B. 2
C. 11
D. 12
34. Which compound contains ionic bonds?
A. N2 O
B. Na2 O
C. CO
D. CO2
36. Which of the following atoms has the largest atomic
radius?
A. Na
B. K
C. Mg
D. Ca
37. Which particles account for most of the mass of the atom?
A. protons and neutrons
B. protons and electrons
C. neutrons and electrons
D. neutrons and positrons
38. Which compound represents the compound aluminum
iodide?
A. AlI
B. AlI3
C. Al3 I
D. Al3 I3
39. Which formula represents an ionic compound?
A. NaCl
B. N2 O
C. HCl
D. H2 O
40. When metals combine with nonmetals, the metallic atoms
tend to
A. lose electrons and become positive ions
B. lose electrons and become negative ions
C. gain electrons and become positive ions
D. gain electrons and become negative ions
41. Which element has an atom with the electron configuration
2–8–8–2?
A. Mg
B. Ni
C. Ca
D. Ge
42. What is the symbol for an atom containing 20 protons and
22 neutrons?
A. 35. The correct formula for calcium phosphate is
A. CaPO4
B. Ca2 (PO4 )3
C. Ca3 P2
D. Ca3 (PO4 )2
43. In an experiment, alpha particles were used to bombard
gold foil. As a result of this experiment, the conclusion was
made that the nucleus of an atom is
A. smaller than the atom and positively charged
B. smaller than the atom and negatively charged
C. larger than the atom and positively charged
D. larger than the atom and negatively charged
B. C. D. 49. Which statement describes a chemical property of the
element iodine?
A. Its crystals are a metallic gray.
B. It dissolves in alcohol.
C. It forms a violet-colored gas.
D. It reacts with hydrogen to form a gas.
44. What is the correct formula for chromium (III) oxide?
A. CrO3
B. Cr3 O
C. Cr2 O3
D. Cr3 O2
45. Which electron-dot symbol correctly represents an atom of
its given element?
C. A. D. B. 46. Which element is in Group 2 (IIA) and Period 7 of the
Periodic Table?
A. magnesium
B. manganese
C. radium
D. radon
47. What is the total number of neutrons in an atom of 50. A chemical bond between two atoms results from a
simultaneous
A. attraction by the protons for the neutrons
B. attraction by the two nuclei for the electrons
C. repulsion by the valence electrons of the atoms
D. repulsion by the protons in the two nuclei
51. Which formula represents lead (II) phosphate?
A. PbPO4
B. Pb4 PO4
C. Pb3 (PO4 )2
D. Pb2 (PO4 )3
52. When the equation: __Al2 (SO4 )3 + __ZnCl2 → __AlCl3 +
__ZnSO4
is correctly balanced using the smallest whole number
coefficients, the sum of the coefficients is
A. B. C. D. 9
8
5
4
?
A. B. C. D. 82
125
207
289
48. As the elements Li to F in Period 2 of the Periodic Table are
considered in succession, how does the relative
electronegativity and the atomic radius of each successive
element compare?
A. The relative electronegativity decreases, and the atomic
radius decreases.
B. The relative electronegativity decreases, and the atomic
radius increases.
C. The relative electronegativity increases, and the atomic
radius decreases.
D. The relative electronegativity increases, and the atomic
radius increases.
56. Spectral lines produced from the radiant energy emitted
from excited atoms are thought to be due to the movements of
electrons
A. from lower to higher energy levels
B. from higher to lower energy levels
C. in their orbitals
D. out of the nucleus
57. Which element is a member of the halogen family?
A. K
B. B
C. I
D. S
53. Given the electron dot diagram: The valence electrons represented by the electron dot diagram
could be those of atoms in Group
A. B. C. D. 13
15
3
16
54. Which formula represents a molecular substance?
A. CaO
B. CO
C. Li2 O
D. Al2 O3
55. What is the formula for sodium oxalate?
A. NaClO
B. Na2 O
C. Na2 C2 O4
D. NaC2 H3 O2
59. What is the gram formula mass of Li2 SO4 ?
A. B. C. D. 54g
55g
110g
206g
60. What is the correct formula for ammonium carbonate?
A. NH4 (CO3 )2
B. NH4 CO3
C. (NH4 )2 (CO3 )2
D. (NH4 )2 CO3
58. What is the formula mass of Al2 (SO4 )3 ?
A. B. C. D. 123
150.
214
342