Part7 A brief introduction to scientific writing in English
Part 1 Physical Properties 物理性质
1）Colour 〖颜色〗 colourless red-brown violet-black purple-black pale yellow dark brown
oxide and carbon dioxide
•
Calcium carbonate decomposes to calcium oxide
and carbon dioxide when it is heated
Part 3 Chemical Calculation（化学计算 ）
2、反应条件
• heat ; burn • ignite/ignition (点燃） • electrolyze/electrolysis（电解） • under/at ambient/room temperature • under standard pressure • with/in the prescence of catalyst
3.3
• Reaction between nitrogen and hydrogen at high temperature and pressure with the presence of a catalyst gives ammonia.
• At high temperature and pressure, reaction of nitrogen with hydrogen in the presence of a catalyst takes place.
Teaching Plan on Specialized English Course for Applied Chemistry
Part 1 Physical Properties Part 2 Chemical Equations Part 3 Chemical Calculation Part 4 Nomenclature Of Inorganic Chemicals Part 5 Some Basic Chemical Theories Part6 Translation
3、 读 法
高温，高压
• 3.1 Nitrogen reacts with hydrogen to form ammonia at high temperature and pressure with the presence of a catalyst.
• 1 mol nitrogen reacts with 3 mol hydrogen to form 2 mol ammonia at high temperature and pressure with the presence of a catalyst.
soluble insoluble slightly soluble very soluble
5）observations
brisk effervescence precipitate milky
aqueous solution
6）density
heavy light less dense denser
水解反应）
• exothermic reaction（放热反应） • endothermic reaction（吸热反应） • reversible reaction（可逆反应） • forward reaction（正向反应） • reverse reaction（逆反应） • spontaneous reaction（自发的反应） • nonspontaneous reaction （非自发反应）
3.2
•
ห้องสมุดไป่ตู้
Nitrogen combines with hydrogen to
form ammonia at high temperature and
pressure with the presence of a catalyst.
• Ammonia decomposes to nitrogen and hydrogen at high temperature and pressure with the presence of a catalyst.
greatly denser slightly denser about the same dense
7）hardness
hard soft
ductile malleable
8）toxicity
toxic poisonous
9）melting point boiling point
High low
10）conductivity
electronic conductivity thermal conductivity conductor semiconductor insulator
Part 2 Chemical Equations
1.反应名称：
化学方程式
• Disproportionation（歧化反应） • neutralization; hydrolysis（中和反应，
2
• Zinc treated with hydrochloric acid forms hydrogen and zinc chloride
3.4
Calcium carbonate when heated produces calcium oxide and carbon dioxide
•
Calcium carbonate is heated to yield calcium
2）state
solid liquid gas gaseous oily crystalline uncrystalline molten fused
3）smell
odourless pungent penetrating choking offensive sour sweet bitter
4）solubility