IELTS-Subjects-化学

• reagent n. 反应力；反应物； 试剂
• element n. 元素，成分
• Water is made of two element: oxygen and hydrogen.
• compound n. 化合物
• molecule n. 分子；摩尔
• electron n. 电子
• isotope n. 同位素；核素
• polymer n. 聚合体
• alloy n.合金
• metal n. 金属
• metalloid n. 非金属
• derivative n. 衍生物
• alkali n. 碱;碱金属 adj. 碱性的
• hydrate n. 水合物
• action n. 作用
  Catalysts are something used to accelerate chemical action.
• adhesive n. 粘合剂 adj. 胶粘的；粘着性的
• alchemy n. 炼金术；魔力
• biochemistry n. 生物化学
• bleach vt.去色；漂白(blanch, wwhiten) n.漂白剂
  Please soak shirts in bleach to remove the stains.
• blast v.爆破
  The village was blasted by enemy bombs.
• calcium n.钙
• carbon n.碳
• catalysis n.催化作用（催化剂catalyst)
• caustic adj.腐蚀性的(abrasive,corrosive)
  Some chemicals are caustic by nature.
• combination n.化合；组合
  The safe combination of the two chemicals required a complicated chemical process. / The is a combination of two powerful ingredients.
• corode v.腐蚀(erode, cat away)
  The metal has corroded (away) fecause of rust.
• crystal adj.结晶状的
• decay v.(使)腐败(rot, decompose)
  Sugar decays our teeth.
• decomposition n. 分解；腐烂
• erode vt.蚀，腐蚀(corrode, wear away)
  The sea has eroded the cliff face over the years.
• explode v. (使)爆炸(blast)
  The red ballon exploded when I popped it with a pin.
• explosive adj. 爆炸的 n.炸药
  Dynamite is highly explosive. / Politics can be explosive issue.
• gasoline n.汽油
• ignite vt. 使燃着(inflame, kindle)
  A smoldering cigarette ignited the newspapers.
• impurity n.杂质
• iodine n. 碘，碘酒
• methane n. 甲烷，沼气
• neutralize v.中和(counteract)
  Alkalis neutralize acids.
• nickel n.镍；镍币
• nitrogen n.氮
• particle n.颗粒，微粒
• polymerization n.聚合
• scorch vt.使退色(discolor)
  Do not leave the iron on that delicate fabric or the heat will scorch it.
• silicon n.硅，硅元素
• sodium n.钠
• solubility n.溶度，溶性；可解决性，可解释性
• solvent adj.溶解的；有溶解性的；有偿付能力的 n.溶媒，溶剂
• sulfur n.硫磺
• synthetic adj.综合的；合成的(artificial, man-made)
• tint vt.上色，染色 n.上色；色彩(tinge, hue)
  At dawn, the sky tints with green and pink. / His comments were tinted with irony.
• zinc n.锌
• solution n.解答，解决办法；溶解，溶液
• rotten adj.腐烂的(decaying, decomposed)
  The rotton fruit smelled horrible.

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