Multiple Choice
When two atoms share a pair of electrons, the bonding is referred to as:
a) Ionic.
b) Covalent.
c) Unstable.
d) Hydrogen.
e) Polar.
2. Chemistry
Covalent Bonds
Back2. Chemistry
Covalent Bonds
- Multiple Choice
What makes a covalent bond nonpolar?
a) The bonded atoms share electrons unequally.
b) The bonded atoms share electrons equally.
c) The bonded atoms have equal electronegativities.
d) The bonded atoms have unequal electronegativities.
e) a and d only.
f) b and c only.
- Multiple Choice
If a covalent bond is polar:
a) Electrons are not shared by atoms.
b) Protons are shared by atoms.
c) The bond is not important to living cells.
d) One of the atoms has a partial negative charge.
e) The bond is not a strong bond.
- Multiple Choice
Bonds between two atoms that are equally or similarly electronegative are ________.
- Multiple Choice
The hydrogens and oxygen of a water molecule are held together by ______ bonds.
- Multiple ChoiceA covalent bond is likely to be polar if __________.
- Multiple ChoiceWhen one or more pairs of valence electrons are shared by two neutral atoms, what type of bond is formed?
- Open QuestionWhich of the following occurs when a covalent bond forms?a. Electrons in valence shells are transferred from one atom to another.b. Electrons in valence shells are shared between atoms.c. Partial charges on polar molecules interact.d. Nonpolar molecules are pushed together.by surrounding water molecules.
- Open QuestionWhich of these molecules would you predict to have the largest number of polar covalent bonds based on their molecular formulas?a. C2H6O(ethanol)b. C2H6(ethane)c. C2H4O2(aceticacid)d. C3H8O (propanol)
- Open QuestionWhich of these molecules would you predict to have the largest number of polar covalent bonds based on their molecular formulas?a. C2H6O(ethanol)b. C2H6(ethane)c. C2H4O2(aceticacid)d. C3H8O (propanol)
- Open QuestionThe atomic number of sulfur is 16. Sulfur combines with hydrogen by covalent bonding to form a compound, hydrogen sulfide. Based on the number of valence electrons in a sulfur atom, predict the molecular formula of the compound.a. HSb. HS2c. H2Sd. H4S
- Open QuestionThe atomic number of sulfur (S) is 16. Sulfur combines with hydrogen by covalent bonding to form a compound, hydrogen sulfide. Based on the number of valence electrons in a sulfur atom, predict the molecular formula of the compound. (Explain your answer.)a. HSb. H2Sc. H4S2d. H4S
- Open QuestionIn terms of electron sharing between atoms, compare nonpolar covalent bonds, polar covalent bonds, and ions.