| 1. | Metabolism is a complexity of chemical reaction . 代谢是各种化学反应的综合。 |
| 2. | Iron reacts with water and air to produce rust . 铁与水和空气起化学反应而生锈。 |
| 3. | They differ in solubility and chemical reactivity . 它们在溶解度和化学反应活性上有差别。 |
| 4. | Processes that consist of molecular changes are called chemical reactions . 包含分子变化的过程称作化学反应。 |
| 5. | In the cells of living systems there are many elaborate chemical reactions . 在生命系统的细胞里有许多复杂的化学反应。 |
| 6. | A chemical reaction is a process in which one species is converted to another . 化学反应是一种物质转变成另一种物质的过程。 |
| 7. | Compounds can often split up by chemical reactions into their constituent elements . 化合物常能通过化学反应分解为构成该化合物的各个元素。 |
| 8. | The chemical reactivity of apo would facilitate its hydrolysis in a waste stream . 三嗪基膦氧化物的化学反应能力会在废水中促进本身的水解。 |
| 9. | Chemical reactions always involve the formation or the breaking down of one or more compounds . 化学反应总是包含一种或多种化合物的生成和分解。 |
| 10. | We imagine using an anticatalyst to "freeze out" any chemical reactions in the system . 可想象利用一种反催化剂使体系内的任意化学反应“冻结”。 |