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22 Cards in this Set
- Front
- Back
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What is the metallic ion in the compound CuCl2?
a. Cu2– b. Cu2+ c. Cu– d. Cu+ |
B
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An ion and its parent atom have the same
a. number of charges. b. atomic number. c. chemical reactivity. d. electron configuration. |
B
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Compared with ionic compounds, molecular compounds
a. are harder. b. have higher boiling points. c. are brittle. d. have lower melting points. |
D
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An anion
a. attracts ions with negative charges. b. results when an alkaline-earth metal loses one of its two outermost electrons. c. has more protons than electrons. d. is an ion with a negative charge. |
D
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What is the ratio of cations to anions in a compound composed of sodium ions,
Na+ and carbonate ions? a. 1 to 1 b. 3 to 1 c. 2 to 1 d. 1 to 2 |
C
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The indium(II) ion and indium(III) ion
a. have the same charge. b. have charges of 1+ and 2+, respectively. c. are polyatomic ions. d. have charges of 2+ and 3+, respectively. |
D
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The elements of the _____ group satisfy the octet rule without forming compounds.
a. alkali metal b. alkaline-earth metal c. halide d. noble gas |
D
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In the NaCl crystal, each Na+ and Cl– ion has clustered around it _____ of the oppositely charged
ions. a. 6 b. 1 c. 4 d. 2 |
A
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Which of the following electron configurations belongs to an element that is NOT chemically
reactive? a. 1s22s22p63s23p64s1 b. 1s22s22p63s23p6 c. 1s22s22p5 d. 1s22s22p3 |
B
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The energy released when a salt is formed from gaseous ions is called the
a. lattice energy. b. bond energy. c. energy of crystallization. d. potential energy. |
A
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Once an atom has full s and p orbitals in its outermost energy level,
a. it is highly reactive only with halogens. b. it can be combined with most elements. c. it has a stable octet and is unreactive. d. it is highly reactive only with alkali metals. |
C
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Name the compound Zn3(PO4)2.
a. zinc phosphate b. zinc (III) phosphate c. zinc (II) phosphate d. trizinc diphosphate e. zinc potassium oxide |
C
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Name the compound CuCO3.
a. copper carbide b. copper(II) carbonate c. copper(I) carbonate d. copper monocarbontrioxide e. copper trioxycarbide |
B
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Elements in a group or column in the periodic table can be expected to have similar
a. atomic numbers. b. properties. c. numbers of neutrons. d. atomic masses. |
B
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The chemical formula for an ionic compound represents the
a. total number of ions in the crystal lattice. b. number of atoms in each molecule. c. number of ions in each molecule. d. simplest ratio of ions that results in an electrically neutral compound. |
D
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A comparison of calcium sulfate and calcium sulfite shows that
a. only calcium sulfite contains a polyatomic anion. b. both have a monatomic cation and a polyatomic anion. c. only calcium sulfate is arranged in a crystal lattice pattern. d. calcium sulfite has more oxygen atoms than calcium sulfate. |
B
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In a crystal of an ionic compound, each cation is surrounded by
a. positive ions. b. neutral ions. c. molecules. d. anions. e. dipoles. |
D
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What is the formula for the compound formed by the barium ion, Ba2+, and the hydroxide ion, OH–?
a. BaOH b. BaOH2 c. Ba2OH d. Ba(OH)2 e. Ba(OH) |
D
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The symbol HCO3
− represents a a. salt. b. polyatomic ion. c. stable compound. d. monatomic ion. |
B
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Atoms of copper and iron
a. tend to form cations. b. have stable electron configurations. c. tend to form anions. d. generally form stable bonds with transition elements. |
A
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Which of the following is NOT a property of an ionic compound?
a. molten compound conducts electricity b. low boiling point c. hardness d. brittleness |
B
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A compound that has the same number of positive and negative charges is said to be
a. intoxicating. b. anionic. c. isoelectronic. d. electroneutral. e. cationic. |
D
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