27.
In c___________ bonding, the electrons (are) (are not) shared. They are
donated by (one element) (both elements).
28.
In c_________ c________ bonding, the electrons (are) (are not) shared. They
are donated by (one element) (both elements).
29.
Listed below are chemical symbols for parts of 12 different molecules. First, label
each part with its valence. Then, write the formula of the molecule with the proper
subscripts to make it electrically neutral.
PARTS
FORMULA
a. H, Cl
_____________________
b. H, SO4 _____________________
c. Na, Br
_____________________
d. H, NO3 _____________________
e. Ca, Cl _____________________
f.
Na, Cl
_____________________
g. Mg, CO3 _____________________
h. Ca, NO3 _____________________
i.
NH4, SO4 _____________________
j.
K, PO4
_____________________
k. Al, SO4 _____________________
l.
Zn, PO4 _____________________
MD0803
1-37