2025年9月26日 · All the matter in the universe is composed of the atoms of more than 100 different chemical elements, which are found both in pure form and combined in chemical …

2025年9月23日 · Cooking, fermentation, glass making, and metallurgy are all chemical processes that date from the beginnings of civilization. Today, vinyl, Teflon, liquid crystals, …

2025年10月10日 · A chemical reaction is a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are …

2025年10月7日 · The merged company became the Chemical Banking Corporation. In 1996 the firm, which was by then the second-largest bank in the United States, merged with another …

Chemical industry, complex of processes, operations, and organizations engaged in the manufacture of chemicals and their derivatives. Raw materials include fossil fuels and …

The detailed mechanism by which a chemical process occurs is referred to as the reaction path, or pathway. The vast amount of work done in chemical kinetics has led to the conclusion that …

1971年1月11日 · The Chemical Brothers, a British deejay-producer duo who pioneered the big beat dance music genre in the 1990s with such singles as ‘Chemical Beats,’ ‘Block Rockin’ …

2025年9月13日 · Neon, chemical element, inert gas of Group 18 (noble gases) of the periodic table, used in electric signs and fluorescent lamps. Colorless, odorless, tasteless, and lighter …

2025年10月10日 · Chemical reaction - Energy, Reactants, Products: Energy plays a key role in chemical processes. According to the modern view of chemical reactions, bonds between …

2025年9月22日 · Cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining …