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Section 8.3 Molecular Structures

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Last updated over 3 years ago
27 questions
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Question 1
1.

Classify the following as a molecular formula or Lewis structure.

  • PH3
  • NH3
  • N2O4
  • CO2
  • Molecular Formula
  • Lewis Structure
Question 2
2.

Classify the following elements as a metal or nonmetal.

  • carbon
  • copper
  • iodine
  • tin
  • tungsten
  • nickel
  • oxygen
  • sulfur
  • fluorine
  • hydrogen
  • Metal
  • Nonmetal
Question 3
3.

A structural formula shows the arrangement of the atoms in a molecule.

Question 4
4.

A central atom in a molecule is the one with the highest electron affinity.

Question 5
5.

Hydrogen can be a central atom.

Question 6
6.

The number of bonding pairs in a molecule is equal to the number of electrons.

Question 7
7.

To find the total number of electrons available for bonding in a positive ion, you should add the ion charge to the total number of valence electrons of the atoms present.

Question 8
8.

The electrons in a coordinate covalent bond are donated by both the bonded atoms.

Question 9
9.

Resonance occurs when more than one valid Lewis structure can be written for a molecule.

Question 10
10.

All resonance structures have at least one double bond.

Question 11
11.

Ozone is an example of a molecule that forms a resonance structure.

Question 12
12.

The carbon dioxide molecule contains two double bonds.

Question 13
13.

All electrons in an atom are available for bonding.

Question 14
14.

When carbon and oxygen bond, the molecule contains ten pairs of bonding electrons.

Question 15
15.

The formula for the nitrogen element is N2.

Question 16
16.

Rearrange so that each statement matches with the appropriate molecule.

Draggable itemarrow_right_altCorresponding Item
More than one valid Lewis structure
arrow_right_alt
NO
Odd number of valence electrons
arrow_right_alt
BF3
More than 8 electrons around central atom
arrow_right_alt
SF6
Fewer than 8 electrons around an atom
arrow_right_alt
O3
Contains two double bonds
arrow_right_alt
CO2
Question 17
17.

Extra Credit Review: name the following acid H2SiO3

Question 18
18.

Extra Credit Review: name the following acid H2S

Question 19
19.

Extra Credit Review: name the following acid H2C2O4

Question 20
20.

How many bonded pairs?

Question 21
21.

How many lone pairs?

Question 22
22.

How many lone pairs?

Question 23
23.

How many bond pairs?

Question 24
24.

How many bond pairs?

Question 25
25.

How many lone pairs?

Question 26
26.

How many lone pairs?


Question 27
27.

How many bond pairs?