英语学习应用化学专业英语考试必背

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.
soluble insoluble slightly soluble very soluble
5）observations
brisk effervescence precipitate milky
aqueous solution
6）density
heavy light less dense denser
3.2
•
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.
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.
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
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 ）
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） • nonsBaidu Nhomakorabeaontaneous reaction （非自发反应）
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
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，
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
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
2）state
solid liquid gas gaseous oily crystalline uncrystalline molten fused
3）smell
odourless pungent penetrating choking offensive sour sweet bitter
4）solubility
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