| 1.In the International Union of Pure and Applied Chemistry (IUPAC) system of chemical nomenclature, the name of an alkene is derived from the name of the corresponding alkane by replacing the -ane alkane suffix with -ene and, if necessary, adding a prefix to indicate the location of the double bond in the molecule.译文：在国际理论和应用化学联合会化学命名法系统中，烯烃的名称来源于相应的烷烃，用-ene取代烷烃的后缀-ane，如果必要的话，添加一个前缀表示分子中双键的位置。 | |
| | 2.A suitable indicator should be chosen, preferably one that will experience a change in color (an end point) close to the equivalence point of the reaction.译文： 应该选择合适的指示剂，最好是选择那种在反应终点会改变性质的物质。 | |
| | 3.Each of these compounds contains at least one ring that consists of six carbon atoms, each joined to at least two other carbon atoms, and each joined to adjacent carbon atoms by one single and one double bond.译文： 这些化合物中的每一个至少包含一个六个碳原子组成的环，每个碳原子连接着至少两个其他的碳 | |
| | 4.In organic chemistry, compounds composed of carbon and hydrogen are divided into two classes: aromatic compounds, which contain benzene rings or similar rings of atoms, and aliphatic compounds, which do not contain aromatic rings.译文：在有机化学中，由碳和氢组成的化合物可分为两大 | |
| | 5.Molecules are made up of two or more atoms, either of the same element or of two or more different elements, joined by one or more covalent chemical bonds.译文：化合物由两个或两个以上原子组成，同种元素或不同的两种及两种以上元素的原子之间依靠一或多个离子键结合。 | |
| | 6.The atom consists of a central, positively charged core, the nucleus, and negatively charged particles called electrons that are found in orbits around the nucleus.译文： 原子由中心带正电荷的原子核，以及在围绕原子核的轨道上运动的带负电的微粒电子组成。 | |
| | 7.Most people believed that natural processes were controlled by spirits, and they relied on magic to persuade the spirits to help while they conducted practical operations.译文：现在，大多数人认为自然过程可由人脑控制，并且在他们做物理操作时魔力可帮助他们说服大脑。 | |
| | 8.The end point reaches when the indicator just changes color permanently.译文：当指示剂刚变色时就达到了滴定终点。 | |
| 1.弱碱 | |
| | 2.neutralization reaction | |
| | 3.inert gas | |
| | 4.实验装置 | |
| | 5.equivalence point | |
| | 6.phlogiston theory | |
| | 7.triple bonds | |
| | 8.2-methyl propane | |
| | 9.碱式滴定管 | |
| | 10.atomic weight | |
| | 11. in the proper proportions | |
| | 12.同分异构体 | |
| | 13.脂肪酸 | |
| | 14.Bunsen burner | |
| | 15.甲基橙 | |
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