Question 1
Atoms and molecules join together using chemical bonds.
The strongest type of bond is the covalent bond, which is formed between atoms. When this strongest type of bond forms, it does not break when it is placed in water. This bond occurs when the [3] in the atoms are [4].
The type of bond that is not very common in our bodies is the [5]. This type of bond occurs when the [6] in the atoms are [7].
The only type of bond that can be a double or a triple bond is the [8].
The only type of bond that can be polar or nonpolar is the [9].
The type of bond that typically occurs between molecules is the [10]… this bond occurs between atoms, but doesn’t make a biological molecule.
Question 2
Match each statement with the best term
When atoms from different elements bond together, the resultant item can always be called this.
A compound formed from ionic bonds can be called this.
Any time atoms bond together through chemical bonds, whether they are from the same or different elements, they form this
Whenever an atom has an incomplete valence shell the atom is considered this.
Question 3
Select all the terms that can be used to describe an ion
atom with an extra neutron
positively charged atom
atom that has lost two electrons
negatively charged atom
Question 4
Each hydrogen atom makes this many covalent bonds.
When two nitrogen atoms bond together to form a nitrogen gas molecule, they make a ___ covalent bond with one another.
Carbon atoms are really good at forming complex molecules because each carbon atom tends to make ___ covalent bonds.
The correct way to draw a carbon dioxide molecule, CO2, is
O = C = O
The correct way to draw an ethanol molecule (which is alcohol), C2H6O2, is:
Oxygen often makes only one covalent bond. (T/F)
For a double covalent bond to occur, EACH atom has to share two electrons. (True/False)
Nitrogen atoms as well as carbon and phosphorus atoms tend to make 4 covalent bonds. (T/F)
Question 5
These questions are about polar and nonpolar covalent bonds.
This type of covalent bond is when electrons are shared unequally.
If a molecule contains a good majority of this type of covalent bond then it tends to act hydrophilic
Lipids tend to have a lot of this type of covalent bond.
Sugars tend to have a lot of this type of covalent bond.
A molecule that has polar covalent bonds cannot also have nonpolar covalent bonds in it.
Question 6
These questions are about hydrogen bonds.
A hydrogen bond occurs between molecules with what amount of charge?
partial
The hydrogen of a water molecule will make a hydrogen bond with what part of another water molecule?
The charges that lead to hydrogen bonds occur when a molecule contains ___ within it.
The bond between the oxygen and hydrogen atoms within a water molecule is a hydrogen bond. (T/F)
false
The hydrogen bond is a strong bond. (T/F)
