Q2. Question: Label each bond in the... [FREE SOLUTION]

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Chapter 1: Q2. (page 12)

Question: Label each bond in the following compounds as ionic or covalent.
$a . F_{2} b . L i B r c . C H_{3} C H_{3} d . N a N H_{2} e . N a O C H_{2}$

Short Answer

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Answer

$a . F_{2}$ :Covalent

$b . L i B r :$ Ionic

role="math" localid="1648114228071" $c . C H_{3} C H_{3}$ : Covalent

$d . N a N H_{2}$ :Both covalent and ionic

$e . N a O N H_{2}$ :Both covalent and ionic

Step by step solution

Step-by-Step Solution Step 1: Covalent bonds

The atoms in a covalent bond have electrostatic attraction, and the reacting atoms are neutral. These bonds have low polarity and are weak. The covalent bond formation is shown below:

Representation of a covalent bond formation

Ionic bonds

The atoms in an ionic bond possess electron pairs, and the reacting atoms carry a specific electric charge, that is, either positive or negative.These bonds have high polarity and are strong. The ionic bond formation is shown below:

Representation of an ionic bond formation

Determination of the type of bond present

The bonds are classified as ionic or covalent based on atomic charges. Two neutral atoms will form a covalent bond, whereas two charged species will form an ionic bond.

Classification of compounds

The fluorine-fluorine bond in is covalent. The lithium-bromine bond in is ionic because of the presence of lithium ion and bromide ion . All the carbon-hydrogen bonds in are covalent.

The two nitrogen-hydrogen bonds in are covalent, but the bond between sodium and nitrogen is ionic due to positive and negative charges on sodium and nitrogen, respectively.

The three carbon-hydrogen bonds and one carbon-oxygen in are covalent, whereas the sodium-oxygen bond is ionic due to charges on the atoms.