文档介绍：Lesson 8 pound
New words
Coordination n.
Coordinate n./adj./v.
-coordinate axis 坐标轴-coordinate paper
-the x and y coordinates on a graph
-coordinates of latitude and longitude经纬度
-coordinate geometry 解析几何
,配价的
-coordinate bond
- plex
coordinate function together efficiently 协调
-coordinate one’s movements when swimming
coordination n.
with sb/sth 协调,协同动作
-the perfect coordination of hand and eye
-You need excellent coordination for ball games.
3. 配位作用
-coordination number -coordination center
-coordination cation
NOMENCLATURE OF
POUNDS
of the English name consisting of one or two letters, for example:
oxygen = O         nitrogen = N       magnesium = Mg
2. Based on their Latin names, for example:
iron = Fe (ferrum)       copper = Cu (cuprum)      lead = Pb(Plumbum)
3. A few elements have symbols based on the Latin name of one of pounds, the elements themselves having been discovered only in relatively recent times1, for example:
sodium = Na (natrium = sodium carbonate)
potassium = K (kalium = potassium carbonate)
Naming elements
Name
Symbol
Name
Symbol
Name
Symbol
Nitrate
NO3-
Dichromate
Cr2O72-
Hypo-chlorite
ClO-
Carbonate
CO32-
Perchlorate
ClO4-
Cyanide
CN-
Sulphate
SO42-
Permanganate
MnO4-
Iodide
I-
Phosphate
PO43-
Acetate
OAc-
Fluoride
F-
Hydrogen sulphate
HSO4-
Oxalate
C2O42-
Chloride
Cl-
Hydrogen carbonate
HCO3-
Nitrite
NO2-
Bromide
Br-
Arsenate
AsO43-
Sulphite
SO32-
Sulphide
S2-
Iodate
IO3-
Phosphite
PO33-
Oxide
O2-
Chlorate
ClO3-
Arsenite
AsO33-
Hydride
H-
Chromate
CrO4-
Hydrogen sulphite
HSO3-
Hydroxide
OH-
Table 1    mon Negative Ions
Table 2    Names of Some Metal Oxides, Bases and Salts
Formula
Name
FeO
iron(II) oxide
ferrous oxide
Fe2O3
iron(III) oxide
ferric oxide
Sn(OH)2
tin(II) hydroxide
stannous hydroxide
Sn(OH)4
tin(IV) hydroxide
stannic hydroxide
Hg2SO4
mercury(I) sulphate
mercurous sulphate
HgSO