Chem 116 Exam 2 with Questions & Correct Verified Answers

Chem 116 Exam 2 with Questions &
Correct Verified Answers

The attraction b/w positive & negative ions is known as a(n)

A) molecular bond

B) crystal bond

C) covalent bond

D) ionic bond - ✔✔D



Which substance has ionic bonds?

A) OF2

B) H2O

C) CaO

D) O2 - ✔✔C



The formula for aluminum oxide is

A) AlO3

B) AlO2

C) Al3O2

D) AlO - ✔✔C



The name of the compound S2O3 is

A) sulfur oxide

B) disulfur oxide

C) disulfur trioxide

D) sulfur trioxide - ✔✔A

, A covalent bond is formed when a pair of electrons is

A) split

B) transferred

C) shared

D) destroyed - ✔✔C



Hydrogen is diatomic molecule, H2. The bond holding the hydrogen atoms together is

A) ionic

B) nonpolar covalent

C) metallic

D) polar covalent - ✔✔B



In the hydrogen chloride molecule, HCl, the chlorine end of the molecule is more negative than the
hydrogen end becaus

A) hydrogen is more electronegative than chlorine

B) hydrogen transfers an electron to chlorine

C) chlorine is more electronegative than hydrogen

D) hydrogen & chlorine have the same electronegativity - ✔✔C



If a central atom has 4 electron sets attached to it, the geometry about the central atom is

A) tetrahedral

B) triangular

C) pyramidal

D) linear - ✔✔A



The valence shell electron pair repulsion theory (VSEPR) is used to

A) predict the bonding pattern in molecules

B) predict the number of multiple bonds in a molecule

C) predict the electronegativity of atoms