CHEM 1120 Mini Exam Review Study Guide | General Chemistry Practice & Key Concepts

CHEM 1120 Mini Exam Review Study Guide | General Chemistry Practice & Key
Concepts


D. Bent - ANS ✔✔According to VSEPR theory, a molecule with three charge clouds including one
lone pair would have a ________ shape.



A. Tetrahedral

B. Pyramidal

C. Linear

D. Bent

E. Trigonal Planar



A. polar; nonpolar - ANS ✔✔Consider the molecule SiCl4. The electronegativity values for Si and
Cl are 1.8 and 3.0, respectively. Based on these values and on consideration of molecular
geometry, the Si-Cl bond is ________ and the molecule is ________.



A. polar; nonpolar

B. none of the above

C. nonpolar; nonpolar

D. polar; polar

E. nonpolar; polar



[CO2]^2

---------

[CO]^2[O2] - ANS ✔✔Consider the reaction: 2 CO (g) + O2 (g) 2 CO2 (g)The equilibrium
expression for this reaction is:

, B. 9 - ANS ✔✔How many water molecules can hydrogen bond to the following molecules?
(Hint: don't forget to draw lone pairs!)



A. 7

B. 9

C. 16

D. 4

E. 11



B. Br - ANS ✔✔What fourth period element is represented by the dot structure shown?



A. Co

B. Br

C. K

D. Ca

E. Mn



H====C====C====H - ANS ✔✔What is the best way to draw a molecule with 2 carbon atoms
and 2 hydrogen atoms?



B. H2SO4 - ANS ✔✔What is the conjugate base of HSO4-?



A. H2SO3

B. H2SO4

C. OH-

D. SO4^2-

E.H3O^+