CHEM
40
- 001
Name:
QUIZ 2a
(20
points) Spring 2009
M.Pauly
l. Name the following compounds.
[4points]
3.
2. Write the chemical formula for the
following compounds.
[4
pointe]
a) sodium nitrate
b) barium
hydrogen carbonate
N
atN0
s
Calaur^ t'rr"5Phc*<
-_---_---_-_
6 tv",vr
on i u r.r., Sll \
.(tl<
P,o,
(+1co)2-
3sot' r a|f'+, tpcl --u ("X +
Balance the following chemical equations by placing
a number in DyERf blank
(including
1).
L4
poinrsl
l")ll
a) -L-. ca
(E + -1 u,o
tt) - | ca(oHL
(s) + I H,
(g)
ul
Suonrr> * I co,(e)
- I u,cq6) * | ",o,,,
For the
equations in
question
3 above, did a
reaction
actually occur? How do
you
know?
L2
poinrsl
a) ves or no? les , rra& \ew Q(+ AJ' "o-t- 2as a'(e oul<-
.
b) yes
or no? ,
^ad he LU t.
a) Ca3(POa),
b) (NHJ,S
blL +
complete-ionic:
5. When KrSOa and AlCl3
solutions are mixed together, a
precipitate
forms. Write the balanced
molgcular,
complete-ionic and net-ionic
aquations below,
f6
poinlsl
'nol""ulu.,
3 (zSo.t I a4lctt, f Alz(so+):
rs)
ba( + *l-(so,)r,,r1
net-ionic: tso;-oq)
+ e ftt"l,r,+ *t"(so,+),
k)