1. A chemical substance is widely applied in the process of preparing the cotton for jean production.
举一反三
- In the task of analytical chemistry, the process of characterizing the chemical structure of a substance is called ( ) analysis A: Qualitative B: Quantitative C: Structure D: Conformation
- One of the research area in Green Chemistry is to use renewable feedstocks for chemical production. Which could be used as feedstocks for chemical production in the following resources? A: Kitchen garbage B: Waste cooking oil C: Agricultural wastes D: Microalgae
- A chemical is any aspect of a substance which is only seen by means of a chemical reaction (反应).
- With a chemical r______, a new substance can form.
- The production process of thermal power plant is to convert () of fuel into electric energy. A: chemical energy B: heat energy C: mechanical energy D: kinetic energy