Chem Unit 6 Review: Question Preview (ID: 3004)

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The lewis structure of HCN contains:
a) 1 double bond and 1 single bond b) 1 triple bond and 1 single bond c) 2 double bonds d) 2 single bonds
A polar covalent bond is likely to form between two atoms that:
a) have the same number of electrons b) are of similar size c) differ in electronegativity d) are similar in electronegativity
A chemical bond results from the mutual attraction of the nuclei for:
a) electrons b) protons c) dipoles d) neutrons
Which molecule contains a double bond?
a) COCl2 b) CF4 c) C2H6 d) SF2
An unknown substance is an excellent conductor in the solid state and is malleable. What type of chemical bonding does this substance have?
a) cannot determine from the information given b) metallic bonding c) molecular bonding d) ionic bonding
How many lone pairs are there on the central atom in H2O?
a) 1 b) 2 c) 3 d) 4
How many electrons are shared in a single bond?
a) 2 b) 4 c) 6 d) 8
What shape is CO2?
a) bent b) linear c) angular d) tetrahedral
What forces exist between nonpolar molecules?
a) dispersion b) dipole-dipole c) ionic bonds d) metallic bonds
How many valence electrons are in the molecule NO2?
a) 23 b) 17 c) 11 d) 21
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