19.
reduced; oxidized (para 2-7d)
20.
0; +2
0; -1
oxidized
reduced
Mg
I2 (para 2-7)
21.
protons
hydroxyl ions
H+
OH-
H+ (hydrogen), OH- (hydroxyl) (para 2-8a)
22.
protons accepts (para 2-8b)
23.
H2CO3
HCO3 - (para 2-8)
24.
a acid
b base
c acid
d base
e base
f acid
g base
h base (MgO + H ----> MgOH+ + (OH -)
2O
i salt (para 2-8a, b)
25. a
blue to red
b
sour
c
d
carbon dioxide
e
salts (para 2-8c)
26. a
red to blue
b
bitter
c
soapy
d
salts, water (para 2-8d)
27. water (para 2-8d)
MD0803
2-37