fig. 3-1. fig. 3-2 hydrogen bond – – h + + h o — — + + + + +…
DESCRIPTION
Fig. 3-3 Water-conducting cells Adhesion Cohesion 150 µm Direction of water movementTRANSCRIPT
Fig. 3-9
Neutral solution
Acidic solution
Basic solution
OH–
OH–OH–
OH–
OH–OH–OH–
H+
H+
H+
OH–
H+ H+
H+ H+
OH–
OH–
OH–OH–
H+
OH–
H+H+
H+
H+H+
H+
H+OH–
Neutral [H+] = [OH–]
Incr
easi
ngly
Aci
dic
[H+ ]
> [O
H– ]
In
crea
sing
ly B
asic
[H+ ]
< [O
H– ]
pH Scale0
1
2
3
4
5
6
7
8
Battery acid
Gastric juice,lemon juice
Vinegar, beer,wine, cola
Tomato juice
Black coffee
RainwaterUrine
SalivaPure waterHuman blood, tearsSeawater
9
10Milk of magnesia
Household ammonia
Householdbleach
Oven cleaner
11
12
13
14