Properties of covalent bonds
What is a covalent bond?
The chemical bond that results from the sharing of valence electrons.
What are the three steps of naming bonds?
1. The first element in the formula is always named first using the entire element.
2.The second element in the formula is named using the root of the element of adding the suffix -ide.
3.Prefixes are used to indicate the number atoms of each type that are present in the compound.
What does the name of a molecular compound reveal?
Composition of the compound.
What is a binary acid?
An acid that contains hydrogen and one element.
Define Electronegativity.
a measure of how strongly atoms attract bonding electrons to themselves.
How is a molecule formed?
By two or more atoms bond covalently.
Hexa-
What does the name of a binary molecule help do?
It helps write the correct formula with ease.
What is a oxyacid?
An acid that contains hydrogen and an oxyanion.
What is a polar covalent bond?
a bond where the electrons forming the bond are unequally distributed.
Define Lewis Structures.
It is the use of electron-dot diagrams to show how electrons are arranged in molecules.
What is the one exception to using the prefixes?
The first element and the formula never uses the prefix mono-.
How are subscripts determined?
From the prefixes used in the name.
What prefixes do you use when naming a binary acid?
Hydro- & -ic
What is a nonpolar covalent bond?
A bond where bond that occurs when two atoms share a pair of electrons with each other.
Why do multiple bonds form?
covalent bond between 2 atoms produced by sharing 2 pairs of electrons(4 separate electrons)
What is the name of N2O?
Dinitrogen tetrahydride
What is the formula for iodic acid?
HIO3
What is the name of HNO3?
Nitric Acid.
List three properties of a covalent compound.
1. Low boiling points and melting points.
2. Brittle solids.
3.Poor conductors of heat and electricity.
What are single covalent bonds called?
Sigma bonds.
T/F - The prefex for 2 is tri-
FALSE! It is di-
Whats the formula for dinitrogen monoxide.
N2O
What do you do if you oxygen is present in the phone for an acidic compound?
The acid is named in the same way as a binary acid, but the root if the second part of the name is the polyatomic ion that the acid contains.
How is electronegativity difference used in determining the type of bond that occurs between two Atoms?
If the difference is between 0 and 1.7, it is polar covalent. If the difference is zero, the bond is considered nonpolar covalent.