Date
Class
Name
2.2 Properties of Water
Lesson Objectives
E
Ë¡
E
Discuss the unique properties of water.
Differentiate between solutions and suspensions
Explain what acidic solulions and basic solutions are.
Lesson"Summary
.
,
ø,)¿.ïer ryroleCu¡,leS O-trL POf-RR beea¡tSe Ol+lrre uL!îeVgu^
N€q*ive¿-¡
cli s lr r Vttr-Lr ¿,-zu Ð( eleclvpn s . Tl¿ti s ctre L+e! a-o^is ti gttt+ Hgevryn G)'
ecLch
a-md s lù9 hb 7ot i fìtne cha-rqn
alnærr¿e o n
""5q"^
f = " lou¿e-r er^te dg,lfa-" = 7afÌict-L
aa
+
tl
H
H
*qLwgut bo nù.ta ( u - bo'nd)
o-ts o q р5
uJ
a..*<'r
an
A DIÌ€SÌ
prÐ?fu. $rìcVs tD o+lG
lo vwrz 12.-r."q s)
-b.glass
:
¿:
@hgivn
Á
[q ss
P
il
ôi
¡
î
H
l+gol-t'u
W^ bond;ny
W+u e<*1*'|'tn e ? a-u'h' aJL
a-^<l
@ s ¡ ¿-o-s of ort't- t{ ao
+1r\a-,e s¡ d-z oF a neùghhM
f'ta_o = (4¡veS U\Je+€-'^
vE
e aÅ h¡ s iu-n-
;
-o:
a5 fr¿
cW-t
p^e{WJ
"Strc-ks
*o i+seç
l*t-hûì^. = O- r¡,,rt-X tr¡-r-e L -l/ú-æ- 7 aí7< d*rt e+Xn U-, S yrÍad o t'¡ È
(t-^€ d it-r
5o (,tÅ< = +lr1 in g of i¡ sc,
llV ¿ql L^su . brologY =tttu,/'<*).
oP g¿o-1<r A ncl Uv'rdiSSoIt¡ed n\/.l|<)'1oLt'
rr,n iÌtr-¡-rt
ót¡-s uî I Ù?^+ {- oçl- Lil-Lfa ìonit&1t'or-)
H o
H
2
Ar;ids, þas€s, PH
I
id.c- | ir^yraos|
l-l 2 oJ
^ h ud,-rox
+yd,n>c(t-r
^
ts fl^ iJ ftrrn
lerh.The Water Mol ec I e
l-{ S Uo-l!- vtn;.aSu-res
a
bO
"
o
I
?
H + iun
For Questions 1-4, write True or False on the line provided- C6-n u-nwrt-tt av't
i,T O Sot¡-tJr'Y SeaLe;Ô-tI
l. Warerisapolarmolecule.
o(
'*
S
:
2. lìydrogen bonds are an example of aclhesion ?wre. "*la-1+r/newlvc'-l'
v.-d¡-¡-ce s ¡1* ì'mJ
t
3. covalent bonds give water a low heat capacity. '-o jd P
ìn s o urtr t¡n cr.t,'ìd h-av-<
4. A hydrogen bond is strongerthan a covalent rorrd.OH
Ue ¡- bcrndS ¿rt u¿ezl<
' ,
á*+
cotti-ictVe-lt4¡åg
.
<\ +
. base ¡ovoL-'a-ct.s ot'{ 'i; Jo Lt¡-n gzr' Â-n'c{
I tÐns
PFt > +'
Solutions and Suspensions
5. Complete the table
Mi x*u r¿
Physical combinatíon of two or more substances
Solute
90 me
SoIvt¡t+
.IOvrr¿
5úsFUlsiùt
w
SoLvec
Cinnamon sugar
tn
Salt in saltwater
.l,r'¡So lqe-a
¿
UJAsR-f
Mixture of water and nondissolved substance
Blood
vu ¡ Xh/-Fe uJanx, ÞayH, -a;ve
2l¡Ot¿tlt
I îøv.r.'t .J Ä,tl .{rdtrçølveJ
Solution
g4-to rè*¿n_
Acid s, Bases, and pH
6. What
makes pure water neutral?
i¡
if Ìrqnst nl+
t
+ oH' 6o it
-1 æ
lt
o
a bQ,øttsl i+ laateUl rcøci gn.
7. V/hat does th e pH scale measure? P
L4+ ìor-t Ø nccn+1.ehbh (tno ut adú\
,¡)
w
8.
rno,¡t
On the pH scale, indicate w
basic.
s increasingly acidic and whi
fnore
wvre
O a.uL
H
¡y1of?
3
g
î
È
È
o-
b
3
g
E
Þ'
lo
zo
?T
hE
ñ4
g
Ð
qff
t
¿h
CL
I*L
,,
{t
=
9. Identify two solutions that have more H* ions than OH- ions
tu1
14
10' ldentify two
solutions that have more
oH- ions than H* ions.
o
I
l.
v
-
aCtilt^c
o123.t56789
ô
OH
How would you buffer a solution that has a pH of 12?
Apply the Big idea
12. Why are buffers imporranr to livíng things?
20
lt
t2
t3
g,
a
È
!
+
Ø,a'd.)
(
tLt'
l-aal¿,f)
14