Bonding Basics: Question Preview (ID: 12043)

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Which formula correctly represents the compound calcium hydroxide?
a) CaOH
b) Ca(OH)2
c) CaOH2
d) Ca2OH

Which type of substance can conduct electricity in the liquid phase but NOT in the solid phase?
a) ionic compound
b) nonmetallic element
c) metallic element
d) molecular compound

Which compound contains both ionic and covalent bonds?
a) ammonia
b) potassium chloride
c) sodium nitrate
d) methane

When a potassium atom reacts with bromine, the potassium atom will
a) lose only 1 electron
b) gain 2 electrons
c) gain only 1 electron
d) lose 2 electrons

Which element forms an ionic compound when it reacts with lithium?
a) K
b) Br
c) Kr
d) Fe

Two atoms with an electronegativity difference of 0.4 form a bond that is
a) ionic, because electrons are shared
b) covalent, because electrons are transferred
c) covalent, because electrons are shared
d) ionic, because electrons are transferred

Which compound has the greatest degree of ionic character?
a) NaF
b) SiF4
c) AlF3
d) MgF2

What occurs when an atom of chlorine and an atom of hydrogen become a molecule of hydrogen chloride?
a) A chemical bond is broken and energy is released.
b) A chemical bond is formed and energy is absorbed.
c) A chemical bond is formed and energy is released.
d) A chemical bond is broken and energy is absorbed

Which pair of atoms is held together by a covalent bond?
a) HCl
b) KCl
c) NaCl
d) LiCl

Multiple covalent bonds exist in a molecule of
a) F2
b) N2
c) Cl2
d) H2

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